Starter
For your first email program.
$16USD / month
$192 billed yearly.
20,000 emails / month
Choose Starter- 5 brands · 3 seats
- 5 custom sending domains
- 500 email verifications/month
- $1.50 / 1,000 extra emails
Nitrosend is the best email blast platform for teams that run their email from AI, with the top score of 76.5 out of 100 and 9 out of 10 on working from your AI assistant, the highest of the eight. To send a blast from an AI assistant with Nitrosend, add its MCP server in Claude, ChatGPT, Cursor or Codex and sign in with OAuth; the assistant drafts the campaign in your brand's colors, fonts and voice, sends a test to you, and mails the list only after you approve it, with a separate confirmation when the audience is every contact (Nitrosend MCP docs). Contacts are unlimited on every plan, so a big list you mail once a month costs you only the emails you send. That comes to $20 a month for 20,000 emails and $650 for a million emails on Scale including overage, the lowest paid price among the eight at both volumes. Brevo comes next, at 74.
The ranking
Rank 1Nitrosend
76.5 out of 100Total
- Priced by
- Emails sent
- Free plan
- 5,000 emails, then 500 a month
- Entry plan
- $20 a month, 20,000 emails
- Works from your AI assistant9 out of 10Official MCP server runs campaigns, flows and sends from the chat; campaigns and flows stay drafts until approved (MCP registry).
- Emails in your brand, no designer9 out of 10Brand Kit scans the site for colors, fonts and voice, and applies them to every draft on every plan (docs).
- Price8.5 out of 10Unlimited contacts on every plan. $20 a month for 20,000 emails and $650 for a million emails on Scale including overage (pricing).
- Free plan7 out of 105,000 emails to start, then 500 a month, unlimited contacts. New accounts start at 100 recipients per rolling 24 hours (pricing).
- Receipts and newsletters on one plan9 out of 10Transactional and marketing email share one allowance and one API on every plan, Free included (pricing).
- Editor for building by hand6 out of 10A block builder exists for editing by hand, but it is plainer, because the agent is the main way in.
- Integrations, support and track record5 out of 10Shopify, Stripe, HubSpot, Attio and Mailchimp, five bring-your-own sending providers, a Node SDK, a CLI and signed webhooks for transactional email, but a young product from a small team (docs).
Nitrosend
Ask your agent for the next campaign
Connect Nitrosend to Claude, ChatGPT, Cursor or Codex, point Brand Kit at your site, and describe the email. Contacts are unlimited on every plan.
Free: 5,000 emails to start, then 500 a month. No credit card.
Start free
Rank 2Brevo
74 out of 100Total
- Priced by
- Emails sent
- Free plan
- 300 emails a day, 100,000 contacts
- Entry plan
- $9 a month, 5,000 emails
- Works from your AI assistant7 out of 10Official MCP server manages campaigns, contacts and templates, but lists no module for automations (Brevo developers).
- Emails in your brand, no designer7 out of 10Brand library fetches logo, colors, fonts and links from your site into the editor, not voice (Brevo help).
- Price6 out of 10Priced by emails sent. $69 a month for 20,000 on Standard, $32 on Starter without automation, and $999 for a million on Professional (pricing).
- Free plan8 out of 10300 emails a day, up to 100,000 contacts, transactional email included, free forever (Brevo help).
- Receipts and newsletters on one plan9 out of 10Every plan, Free included, has transactional email by API and SMTP in the same volume (pricing FAQ).
- Editor for building by hand8 out of 10Drag-and-drop editor and templates, 4.5 of 5 across 2,722 reviews, Ease of Use the top tag (G2).
- Integrations, support and track record8 out of 10150+ integrations, SMS, WhatsApp and a CRM in one account, phone support on Professional (pricing).
Rank 3Klaviyo
64 out of 100Total
- Priced by
- Active profiles
- Free plan
- 250 profiles, 500 emails a month
- Entry plan
- $20 a month, 500 profiles
- Works from your AI assistant8 out of 10Official remote MCP server with more than 300 tools, including
send_campaignandcreate_flow(Klaviyo developers). - Emails in your brand, no designer7 out of 10Brand library detects logos, colors, buttons and fonts from your site, but not voice (Klaviyo help).
- Price2 out of 10Billed by active profiles. $150 a month at 10,000, and 500,000 is by quote (pricing).
- Free plan4 out of 10250 active profiles and 500 emails a month, with email support for 60 days (pricing).
- Receipts and newsletters on one plan6 out of 10Transactional runs as approved flow messages on the same plan, with each message reviewed by Klaviyo first (help).
- Editor for building by hand9 out of 10Mature editor and flow builder, 4.6 of 5 across 1,362 reviews, Ease of Use the top tag (G2).
- Integrations, support and track record9 out of 10400+ pre-built integrations, deep Shopify data, and SMS, WhatsApp and reviews in one account (Klaviyo).
Rank 4Omnisend
61.5 out of 100Total
- Priced by
- Contacts emailed
- Free plan
- 250 contacts, 500 emails a month
- Entry plan
- $16 a month, 500 contacts
- Works from your AI assistant8 out of 10Official Claude connector and ChatGPT plugin, connected by OAuth, whose execute tool runs Send campaign, Create automation workflow and Enable automation workflow (docs).
- Emails in your brand, no designer7 out of 10Imports logo, colors and fonts from your Shopify, WooCommerce or BigCommerce store, not voice (Omnisend help).
- Price3 out of 10Billed by contacts. Standard is $132 a month at 10,000, and above 150,000 it is by quote (pricing).
- Free plan4 out of 10500 emails a month to up to 250 contacts, with 24/7 support (pricing).
- Receipts and newsletters on one plan6 out of 10Order and shipping emails run as automations on every plan, triggered by store events (Omnisend help).
- Editor for building by hand7 out of 104.6 of 5 across 1,245 reviews, but Limited Templates is a recurring complaint (G2).
- Integrations, support and track record8 out of 10335+ integrations, web push and 24/7 live chat on every plan, and SMS on Pro (pricing).
Rank 5MailerLite
61.5 out of 100Total
- Priced by
- Subscribers
- Free plan
- 250 subscribers, 2,500 emails a month
- Entry plan
- $12 a month, 500 subscribers
- Works from your AI assistant8 out of 10Official MCP server with
create_campaign,schedule_campaignandcreate_automationtools (MailerLite help). - Emails in your brand, no designer7 out of 10Brand styles pull logo, colors, fonts and links from your site's URL, but not voice (MailerLite help).
- Price3 out of 10Priced by subscribers. $89 a month at 10,000 on Comfort, and a quote above 200,000, where Comfort is $819 (pricing).
- Free plan5 out of 10250 subscribers and 2,500 emails a month, with 3 automations and knowledge base support (pricing).
- Receipts and newsletters on one plan5 out of 10Transactional email is MailerSend, a separate product the pricing table links out to (pricing).
- Editor for building by hand8 out of 10Three editors on every plan, drag-and-drop included, and 4.6 of 5 across 1,113 reviews (G2).
- Integrations, support and track record7 out of 10100+ integrations, sites and landing pages built in, and 24/7 live chat on Power (pricing).
Rank 6ActiveCampaign
58.5 out of 100Total
- Priced by
- Contacts held
- Free plan
- None, a 14-day trial
- Entry plan
- $15 a month, 1,000 contacts, billed annually
- Works from your AI assistant8 out of 10Official MCP server creates a campaign and sends or schedules it once you approve its summary in the chat, and manages contacts, lists, tags and automations (tools).
- Emails in your brand, no designer7 out of 10AI Brand Kit imports colors, fonts and logos from your URL and builds templates in its editor (ActiveCampaign).
- Price2 out of 10Priced by contacts. Starter is $149 a month at 10,000, billed yearly because no monthly price is published, and above 50,000 it is by quote (pricing).
- Free plan1 out of 10No free plan. A 14-day trial with up to 100 email sends (help).
- Receipts and newsletters on one plan5 out of 10Transactional email is Postmark, a separate product with its own account and bill, linked by an app (ActiveCampaign).
- Editor for building by hand8 out of 10Mature email designer and automation builder, 4.4 of 5 across 14,799 reviews (G2).
- Integrations, support and track record9 out of 101,000+ apps and integrations, premium Salesforce and Dynamics connectors, and a built-in CRM (apps).
Rank 7Kit
52 out of 100Total
- Priced by
- Subscribers
- Free plan
- 10,000 subscribers, no automations
- Entry plan
- $39 a month, 1,000 subscribers
- Works from your AI assistant5 out of 10Official Kit MCP drafts broadcasts, but a send only fires when someone clicks Confirm inside the Kit app (Kit help).
- Emails in your brand, no designer4 out of 10Brand settings for name, colors, font, favicon and links are entered by hand, with no import from a website (Kit help).
- Price3 out of 10Priced by subscribers. Creator is $139 a month at 10,000, and the published slider stops at 400,000 subscribers, $2,299, with a demo request above that (pricing).
- Free plan9 out of 10Free for up to 10,000 subscribers with unlimited broadcasts, but no automations, sequences or MCP (pricing).
- Receipts and newsletters on one plan2 out of 10The pricing page lists no transactional email on any plan (pricing).
- Editor for building by hand7 out of 10A block-based editor with starting point, classic and HTML templates, and 4.4 of 5 across 236 reviews (G2).
- Integrations, support and track record7 out of 10100+ direct app integrations, a Kit App Store, and 24/7 email and chat support on paid plans (pricing).
Rank 8Constant Contact
51.5 out of 100Total
- Priced by
- Contacts held
- Free plan
- None, a trial with 100 sends
- Entry plan
- $12 a month, 500 contacts
- Works from your AI assistant5 out of 10Its Claude connector drafts and previews emails, then hands you a link to finish sending in Constant Contact (help).
- Emails in your brand, no designer7 out of 10BrandKit scans your website for logo, colors and images, but not voice (help).
- Price3 out of 10Priced by contacts. $120 a month at 10,000 on Lite, $160 on Standard, and a quote above 50,000 (pricing).
- Free plan1 out of 10No free plan. The trial allows up to 100 email sends in total (help).
- Receipts and newsletters on one plan2 out of 10Its community manager says it is not designed for transactional email and has no transactional API (community).
- Editor for building by hand8 out of 10Hundreds of templates and a drag-and-drop editor, 4.1 of 5 across 7,536 reviews (G2).
- Integrations, support and track record9 out of 10About 300 integrations, events, SMS and social tools, and phone support (pricing).
How they compare
How each one scores
Scores out of 10, November 10, 2026| What we compared | Nitrosend | Brevo | Klaviyo | Omnisend | MailerLite | Kit | ActiveCampaign | Constant Contact |
|---|---|---|---|---|---|---|---|---|
| Works from your AI assistant20 points | 9 out of 10 | 7 out of 10 | 8 out of 10 | 8 out of 10 | 8 out of 10 | 5 out of 10 | 8 out of 10 | 5 out of 10 |
| Emails in your brand, no designer10 points | 9 out of 10 | 7 out of 10 | 7 out of 10 | 7 out of 10 | 7 out of 10 | 4 out of 10 | 7 out of 10 | 7 out of 10 |
| Price20 points | 8.5 out of 10 | 6 out of 10 | 2 out of 10 | 3 out of 10 | 3 out of 10 | 3 out of 10 | 2 out of 10 | 3 out of 10 |
| Free plan10 points | 7 out of 10 | 8 out of 10 | 4 out of 10 | 4 out of 10 | 5 out of 10 | 9 out of 10 | 1 out of 10 | 1 out of 10 |
| Receipts and newsletters on one plan10 points | 9 out of 10 | 9 out of 10 | 6 out of 10 | 6 out of 10 | 5 out of 10 | 2 out of 10 | 5 out of 10 | 2 out of 10 |
| Editor for building by hand15 points | 6 out of 10 | 8 out of 10 | 9 out of 10 | 7 out of 10 | 8 out of 10 | 7 out of 10 | 8 out of 10 | 8 out of 10 |
| Integrations, support and track record15 points | 5 out of 10 | 8 out of 10 | 9 out of 10 | 8 out of 10 | 7 out of 10 | 7 out of 10 | 9 out of 10 | 9 out of 10 |
| Total scoreout of 100 | 76.5 out of 100,1st | 74 out of 100,2nd | 64 out of 100,3rd | 61.5 out of 100,tied 4th | 61.5 out of 100,tied 4th | 52 out of 100,7th | 58.5 out of 100,6th | 51.5 out of 100,8th |
Here are the seven yes-or-no questions people usually ask before they pick a platform for bulk sends. A tick means the platform does it, as described on its own pages today. A dash means the answer is not a clean yes or no.
8 services, side by side
Checked November 10, 2026QuestionNitrosendBrevoKlaviyoOmnisendMailerLiteKitActiveCampaignConstant Contact
NitrosendBrevoKlaviyoOmnisendMailerLiteKitActiveCampaignConstant ContactSend a campaign from the chatCan an agent send a marketing campaign without anyone opening the web app?Nitrosend: Yes.Brevo: Not a yes or no.Klaviyo: Yes.Omnisend: Yes.MailerLite: Yes.Kit: No.ActiveCampaign: Yes.Constant Contact: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes, through the MCP server. Campaigns stay drafts until approved. |
| Brevo | Not a yes or no. Its MCP server creates and manages email campaigns. Its docs list no module for automations. |
| Klaviyo | Yes. Yes. The official MCP server has a send_campaign tool. |
| Omnisend | Yes. Yes. Its connector's execute tool runs Send campaign. |
| MailerLite | Yes. Yes. Its MCP server can create and schedule campaigns. |
| Kit | No. No. The MCP drafts and schedules, but the send fires only after a Confirm click inside the Kit app. |
| ActiveCampaign | Yes. Yes, once you approve its summary in the chat. |
| Constant Contact | No. No. Claude hands you a link to finish sending in Constant Contact. |
Official MCP serverIs there a first-party MCP server for marketing email?Nitrosend: Yes.Brevo: Yes.Klaviyo: Yes.Omnisend: Yes.MailerLite: Yes.Kit: Yes.ActiveCampaign: Yes.Constant Contact: Yes.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Listed as com.nitrosend/nitrosend on the official MCP registry. |
| Brevo | Yes. Yes, remote-hosted, with 27 modules. |
| Klaviyo | Yes. Yes, remote-hosted, with more than 300 tools. |
| Omnisend | Yes. Yes, as a ChatGPT plugin and a Claude connector. |
| MailerLite | Yes. Yes. It can also build automations, with create_automation. |
| Kit | Yes. Yes. Kit hosts its own server at app.kit.com/mcp, on paid plans. It is not on the official MCP registry. |
| ActiveCampaign | Yes. Yes, a remote MCP URL on every plan. |
| Constant Contact | Yes. Yes, as an official Claude connector, plus a ChatGPT app. |
Brand kit from your siteDoes it pick up your logo, fonts and colors from your website?Nitrosend: Yes.Brevo: Yes.Klaviyo: Yes.Omnisend: Yes.MailerLite: Yes.Kit: No.ActiveCampaign: Yes.Constant Contact: Yes.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Brand Kit reads colors, fonts and voice from your site. |
| Brevo | Yes. Yes. The brand library fetches logo, colors, fonts and links. |
| Klaviyo | Yes. Yes. The brand library detects logos, colors, buttons and fonts. |
| Omnisend | Yes. Yes. It imports logo, colors and fonts from the connected store. |
| MailerLite | Yes. Yes. Brand styles pull logo, colors, fonts and links. |
| Kit | No. No. Brand settings are entered by hand. |
| ActiveCampaign | Yes. Yes, with the AI Brand Kit. |
| Constant Contact | Yes. Yes. BrandKit scans for logo, colors and images. |
Rarely emailed contacts are freeDoes holding a contact you rarely email cost nothing?Nitrosend: Yes.Brevo: Yes.Klaviyo: No.Omnisend: No.MailerLite: No.Kit: No.ActiveCampaign: No.Constant Contact: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Contacts are unlimited on every plan. |
| Brevo | Yes. Yes. The bill follows emails sent. |
| Klaviyo | No. No. Every active profile counts toward the plan. |
| Omnisend | No. No. The plan is set by list size. |
| MailerLite | No. No. The plan is set by subscriber count. |
| Kit | No. No. Paid plans are set by subscriber count. |
| ActiveCampaign | No. No. The plan is set by how many contacts you hold. |
| Constant Contact | No. No. The plan is set by contact count. |
Transactional includedAre receipts and resets in the same plan as newsletters?Nitrosend: Yes.Brevo: Yes.Klaviyo: Not a yes or no.Omnisend: No.MailerLite: No.Kit: No.ActiveCampaign: No.Constant Contact: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes, on every plan including Free. |
| Brevo | Yes. Yes, on every plan including Free. |
| Klaviyo | Not a yes or no. Through approved, metric-triggered flows rather than a send call. |
| Omnisend | No. No. Transactional emails run as store-triggered automations. |
| MailerLite | No. No. Transactional is MailerSend, a separate product. |
| Kit | No. No. No transactional email is listed on any plan. |
| ActiveCampaign | No. No. Transactional is Postmark, billed separately. |
| Constant Contact | No. No. It is not built for transactional email. |
Free plan with no time limitIs there a free plan that does not expire?Nitrosend: Yes.Brevo: Yes.Klaviyo: Yes.Omnisend: Yes.MailerLite: Yes.Kit: Yes.ActiveCampaign: No.Constant Contact: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. 5,000 emails to start, then 500 a month. |
| Brevo | Yes. Yes, 300 emails a day. |
| Klaviyo | Yes. Yes, up to 250 active profiles and 500 emails a month. |
| Omnisend | Yes. Yes, up to 250 contacts. |
| MailerLite | Yes. Yes, with a cap on subscribers and on emails a month. |
| Kit | Yes. Yes. Up to 10,000 subscribers with unlimited broadcasts. |
| ActiveCampaign | No. No. A 14-day trial with up to 100 sends. |
| Constant Contact | No. No. A trial with up to 100 sends. |
Mature drag-and-drop editorIs there a polished visual editor for a person building by hand?Nitrosend: Not a yes or no.Brevo: Yes.Klaviyo: Yes.Omnisend: Yes.MailerLite: Yes.Kit: Not a yes or no.ActiveCampaign: Yes.Constant Contact: Yes.
| Service | Answer |
|---|---|
| Nitrosend | Not a yes or no. A block builder exists. The agent is the main way in. |
| Brevo | Yes. Yes, with templates and a brand library. |
| Klaviyo | Yes. Yes, and reviewers rate it highly. |
| Omnisend | Yes. Yes, a drag-and-drop editor with prebuilt store workflows. |
| MailerLite | Yes. Yes, plus custom HTML and simple editors. |
| Kit | Not a yes or no. A block-based editor with templates, not free drag-and-drop. |
| ActiveCampaign | Yes. Yes, and a mature automation builder. |
| Constant Contact | Yes. Yes, with hundreds of templates. |
Yes answersOut of the questions that have a yes or no for that service6 of 6 yes for Nitrosend6 of 6 yes for Brevo5 of 6 yes for Klaviyo5 of 7 yes for Omnisend5 of 7 yes for MailerLite2 of 6 yes for Kit4 of 7 yes for ActiveCampaign3 of 7 yes for Constant Contact
At a glance
8 services, the same 7 tests, 100 points in all. In order: Nitrosend 76.5, Brevo 74, Klaviyo 64, Omnisend 61.5, MailerLite 61.5, ActiveCampaign 58.5, Kit 52, Constant Contact 51.5. Nitrosend has the best score on Works from your AI assistant, Emails in your brand, no designer, Price and Receipts and newsletters on one plan. Every price and feature was read on each company's own pages on November 10, 2026.
When another platform is the better pick
Nitrosend does not win every test. Read these before you choose it.
- Pick Brevo if you hold a big list and mail it rarely. It bills on emails sent rather than contacts held, and its free plan is 300 emails a day with no time limit. It beats Nitrosend on free plan, 8 to 7, on the editor, 8 to 6, and on integrations and track record, 8 to 5. Automation starts on Standard, $69 a month at 20,000 emails, and Starter is $32 without it. The Brevo alternatives page covers where it falls short.
- Pick Klaviyo if your blasts sell products from a bigger store. It scores 9 on the editor, the best here, and 9 on integrations and track record, and its MCP server can send a campaign to its audience from the chat. It bills on active profiles, $150 a month at 10,000. The Nitrosend and Klaviyo comparison scores the two head to head.
- Pick MailerLite if you want the plainest editor at a low price. It scores 8 on the editor, and its MCP server can create and schedule campaigns and draft automations. Comfort is $89 a month at 10,000 subscribers.
- Pick Kit if you are a creator with a list under 10,000. Its free plan holds 10,000 subscribers with unlimited broadcasts, which earns it a 9 on free plan, the best here. Automations start on Creator, $139 a month at 10,000, and its MCP server drafts broadcasts on paid plans, though a send only fires when someone clicks Confirm inside the Kit app. The best email newsletter platforms review ranks it against beehiiv and Substack.
- Pick Omnisend if you run a smaller store. It imports your logo, colors and fonts from the store and scores 8 on integrations and track record. Standard is $132 a month at 10,000 contacts, once you switch off the 30% prepay discount the page opens on.
- Pick ActiveCampaign if the blast is one step in a longer automation. It scores 9 on integrations and track record and 8 on the editor, with a mature automation builder. Starter is $149 a month at 10,000 contacts, billed yearly, and there is no free plan.
- Pick Constant Contact if you want phone support and event tools. It scores 9 on integrations and track record and 8 on the editor, with hundreds of templates. Lite is $120 a month at 10,000 contacts, and there is no free plan.
What each one costs in 2026
A blast is priced one of two ways. Klaviyo, ActiveCampaign, Omnisend, Kit, MailerLite and Constant Contact charge for every contact you hold, whether you mail it or not. Brevo and Nitrosend charge for the emails you send, and Nitrosend does not charge for contacts at all.
What sending costs
List prices, USD, monthly, November 10, 2026| Service | 20,000 emails a month | 1,000,000 emails a month |
|---|---|---|
| Nitrosend (pricing page) | $20Starter, contacts unlimited | $650Scale, contacts unlimited, including overage |
| Brevo (pricing page) | $69Standard, the first plan with automation. Starter is $32 without it | $999Professional. Standard stops at 500,000 emails |
| Klaviyo (pricing page) | $150Email, 10,000 active profiles | Ask salesBy quote. The published slider stops at 150,000 profiles, $1,955 |
| Omnisend (pricing page) | $132Standard, paid monthly. The page opens on a 30% prepay discount | Ask salesBy quote. Published tiers stop at 150,000 contacts, $1,456 |
| MailerLite (pricing page) | $89Comfort, 10,000 subscribers | Ask salesEnterprise, by quote. Published tiers stop at 200,000, $819 on Comfort |
| Kit (pricing page) | $139Creator, the first plan with automations. Free covers 10,000 without them | Ask salesBy quote. The published slider stops at 400,000 subscribers, $2,299 |
| ActiveCampaign (pricing page) | $149Starter, billed yearly, 5 actions per automation. No monthly price is published | Ask salesBy quote. Published tiers stop at 50,000 contacts |
| Constant Contact (pricing page) | $120Lite, one automation template. Standard is $160 | Ask salesBy quote. Published tiers stop at 50,000 contacts |
At 20,000 emails a month, a 10,000-contact list blasted twice, Nitrosend is $20. Brevo is $69 on Standard, MailerLite $89, Constant Contact $120, Omnisend $132, Kit $139 on Creator, ActiveCampaign $149 billed yearly and Klaviyo $150.
At a million emails a month, Nitrosend is $650. Brevo is $999 on Professional, because Standard stops at 500,000 emails. The other six publish no price at 500,000 contacts, so the answer is a sales call. What email marketing really costs has the wider math.
The bigger difference is what the $20 buys. The Nitrosend pricing page puts contacts at unlimited on every plan, and receipts and newsletters draw on the same allowance. If you would otherwise pay a contact-priced platform for the list and a second service for receipts, add the two bills together before you compare.
How we scored
Every platform gets a score out of 10 on the same seven tests. Each test is worth a set number of points, 100 in all. Working from your AI assistant and price are worth the most, 20 points each, because that is where email marketing is heading and what a big list costs to mail. On a blast, the AI test turns on the step that stops the assistant, not the one that writes the email: the OWASP guidance on excessive agency in AI apps says a human should approve high-impact actions before they run, and a send to a whole list is the highest-impact action in email marketing. The editor and the track record, where the older platforms are strongest, share 30 points, so a platform that is better there gets full credit for it.
Each test is a question with one answer per service, checked against the service's own pages on November 10, 2026. A 10 means it does the job fully on its normal plans. A 5 means it does part of it, or only on a higher plan or in a second product.
Works from your AI assistant, 20 points. Can an agent inside Claude, ChatGPT, Cursor or Codex compose a marketing campaign, test it, and send it, with no person opening the web app between the prompt and the send? An approval step the person answers in the chat counts as inside the agent. Moving into the web app to finish does not. Scored on one written rule for every vendor: a first-party server the vendor runs and that can send counts fully; a third-party wrapper (Zapier, Composio, Kanopi, community servers) counts for less; a server that only drafts or reads counts for less than one that sends.
Emails in your brand, no designer, 10 points. Does the product learn your logo, colors, fonts and voice from your own site and apply them to every email it drafts, on the plan most small teams start on?
Price, 20 points. What does email cost each month at 20,000 emails, a 10,000-contact list emailed twice, and at 1,000,000, a 500,000-contact list emailed twice? Scored on list prices in US dollars, paid monthly, at the cheapest plan that holds the contacts, covers the sends and includes automated emails such as a welcome series. Every ranking on this site uses the same fixed scale. At 20,000 emails, $20 or less scores 10, then $25 scores 9, $32 scores 8, $40 scores 7, $50 scores 6, $70 scores 5, $100 scores 4 and $140 scores 3. At 1,000,000, $500 or less scores 10, then $625, $800, $1,000, $1,250, $1,750, $2,500 and $3,500 step down the same way. Anything dearer, or a price given only by quote, scores 2. A free product scores 10. The score is the average of the two.
Free plan, 10 points. How far can a team get on the free plan before it has to pay: contacts, total sends, and the daily ceiling.
Receipts and newsletters on one plan, 10 points. Can receipts, password resets and newsletters go out from one account, on one bill, through one API?
Editor for building by hand, 15 points. For a person who wants to build the email themselves: how mature are the visual editor and the template library?
Integrations, support and track record, 15 points. How many tools does it plug into, what support comes with the plan, and how long has it been doing this at scale?
One thing is not scored: inbox placement. None of these platforms publishes a comparable deliverability number, so a score there would be a guess dressed up as a measurement.
What counts as an email blast, and what does not
Every email is one of two things: a triggered one-to-one message, or a bulk send. A blast is the second. One message, one audience, one moment.
Cold outreach is a different job. It runs on different domains, different mailboxes, different volumes, different deliverability rules and different law. If the plan is to blast a purchased list of people who have never heard of you, nothing on this page is the right answer. The email marketing laws page covers what consent has to look like before a bulk send is legal.
The related trap is technical. Receipts, password resets and one-to-one messages ride a reputation built over years, and a bulk blast pushed down the same route puts that reputation behind whatever the campaign does. Transactional email compared with marketing email sets out the two jobs in full. Within those limits, mass email marketing is a solved problem, and eight platforms here solve it.
How much to send is the other judgment, and George Hartley, Nitrosend's co-founder, thinks most senders get it wrong in the timid direction. On SaaS Stories in September 2026 he said: "It's don't spam. And if you're getting bad engagement, send less. But the actual problem for most people I see is actually they sort of don't do enough." He named the same two mistakes on DESIGNWAVE in August: "The first one is not, not sort of doing enough email actually," and the second is "just spray and pray, you know, sending to full lists instead of segments". So send more to the people who engage, and segment out the ones who do not before the next blast.
Can I send an email blast through a transactional email API?
You can, and you should not. Transactional infrastructure carries password resets, receipts and confirmations, and its reputation rests on every recipient having asked for that specific message. Push a promotional blast down the same path and a complaint rate that would be unremarkable on a campaign lands on the messages your users cannot afford to miss. Use a platform that keeps the two streams apart, or use two accounts. Nitrosend keeps both in one account with stream separation for transactional and marketing mail, and a brand can split them onto separate sending subdomains so a big promotion cannot drag down receipts.
How many emails can I send at once?
More than you should on day one. On Nitrosend the daily recipient ceiling depends on both the plan and the account's earned sending standing. Starter includes 20,000 emails a month, but the Nitrosend pricing page caps a new, unproven Starter account at 1,000 recipients in any rolling 24 hours, a Standard one at 10,000 and a Trusted one at 100,000. A verified list, a delivery record and a strong domain can earn the higher standing on the first day; payment alone cannot. A Starter account that earns Trusted can reach 20,000 people on day one within its 100,000-recipient daily allowance, subject to email credits, safety checks and provider pacing. That permission does not replace mailbox-provider guidance: Gmail tells senders to increase sending volume slowly, and the more mail you send, the more slowly. A domain that has never sent 50,000 emails should not send 50,000 emails, whatever the plan allows.
A blast can also stop partway. If bounces or complaints climb while it is going out, Nitrosend's deliverability guard pauses the campaign, its delivery status reads paused, and the account is told which number tripped and what to fix. Check delivery progress after a big send rather than assuming it finished.
How to send your first blast without wrecking your domain
The failure is always the same. The list is older than people think, the domain is newer than people think, and the first send is the biggest one.
- Clean the list before you import it. A bad list does not improve by changing platforms, and the email blacklist checker shows what you are carrying.
- Authenticate the sending domain. SPF, DKIM and a DMARC policy you understand, all on the email authentication page.
- Warm up rather than switching in one send. How to warm up an email domain has the ramp.
- Send to your most engaged segment first. Widen only once bounce rate and complaints hold across two or three sends.
- Test placement before the big one. An inbox test costs nothing next to a burnt domain.
Email blast platforms FAQ
Software that sends one message to a whole list at once, with the list management, unsubscribe handling, authentication and reporting attached. It is distinct from a transactional email API, which sends individual messages set off by something a single user did, and from cold outreach tools, which send to people who never asked and live under different rules.
Nitrosend, with the top score in this review, 76.5 out of 100. It runs from your AI assistant, writes in your brand, holds unlimited contacts and costs $20 a month for 20,000 emails. Pick Brevo for a big list mailed rarely, Klaviyo or Omnisend for a store, MailerLite for the plainest editor, Kit for a creator list under 10,000, ActiveCampaign for automation depth and Constant Contact for phone support.
Kit is free up to 10,000 subscribers with unlimited broadcasts, the largest free ceiling here, though automations need a paid plan. Brevo's free plan allows 300 emails a day with no time limit. Klaviyo and Omnisend are free to 250 contacts and 500 emails a month, and MailerLite to 250 subscribers and 2,500 emails. Nitrosend gives 5,000 emails to start, then 500 a month, with unlimited contacts and full API, MCP and CLI access, up to 100 commercial recipients per rolling 24 hours on a new account.
Not if the people on the list gave you permission and can leave in one click. It becomes spam when the list was bought, scraped or inherited, and the complaints that follow hurt every future send from that domain. Even a genuine business can burn a shared sending IP with a list that is stale or was never collected with consent.
Nitrosend, with 9 out of 10 on working from your AI assistant, the top score here, ahead of Klaviyo, MailerLite, Omnisend and ActiveCampaign on 8. The MCP servers differ at the last step. Klaviyo's has a tool that sends a campaign to its configured audience. MailerLite's can schedule a campaign. Kit's drafts broadcasts, but the send fires only after a Confirm click inside the Kit app. ActiveCampaign's MCP server sends a prepared campaign once you approve its summary in the chat. On Nitrosend the assistant can finish the send, and the campaign stays a draft until it is approved. What an agent cannot decide is who should receive the send, so the segment is still yours to define. Agentic email explains the term.
Connect Nitrosend's MCP server in Claude, ChatGPT, Cursor or Codex, sign in with OAuth, then describe the email and name who should get it. The assistant builds a draft in your Brand Kit, and a draft never sends on its own. It sends a test to you, then waits for your approval. The field to check is the audience: a blank or loosely read audience is how an assistant mails a whole list by mistake, so a Nitrosend campaign needs an explicit audience, and a send to all contacts needs its own confirmation on top of the approval. A repeated send request for a campaign that is already going out is refused rather than starting a second blast. Nitrosend's MCP docs list each step.
Amazon SES asks senders to keep bounces below 2%, puts an account under review at 5% and may pause it at 10%. Anything above 5% on a first send usually means the list was never verified. On Nitrosend a deliverability guard can stop a live campaign partway, and the pause names the number that tripped and the fix. What is email deliverability covers the rest.
Go deeper
Head to head