The shortlist is Nitrosend if you want contacts, templates, campaigns, flows and analytics without giving up the SES unit cost, Postmark if a receipt has to arrive now and you want a log you can read, and Resend if the developer experience is the whole complaint. Our own managed sending runs on Amazon SES through SESv2, and we track VerificationStatus, DkimStatus and MailFromDomainStatus per domain because SES does not do that part for you, so nothing here is an argument against SES.
The short version
If a receipt has to arrive now and you want a log you can actually read, Postmark. If you want the tidiest API in the category with React templates, Resend. If your application parses inbound mail, Mailgun has the deepest routing here. If the missing piece is a dashboard and a support team, MailerSend or SMTP2GO. If marketing needs campaigns and SMS on the same bill, Brevo at the budget end and SendGrid if you want scale with a marketing product attached.
And if what you want is campaigns, flows, contacts, templates and analytics on top of SES economics, Nitrosend does that, either on our managed SES or on your own AWS account with your own keys. We get paid the same whichever way you send, which is why I can be specific about the rest.
When to keep Amazon SES and when to replace it
Keep it when the raw economics matter more than anything else. AWS publishes two structures on the same page and they differ by 60% at the entry point, which is the most misquoted number in this category. A la carte is $0.10 per 1,000 emails sent, plus $0.12 per GB of attachment data and $0.03 per 1,000 emails received, and it is what most existing accounts are on. The three named plans are $0.16, $0.22 and $0.23 per 1,000 up to 10 million a month, falling to $0.11, $0.12 and $0.13 above 100 million. All checked 7 September 2026. Whichever structure you are on, nothing else on this page is within an order of magnitude. It scales without a sales call: our own SES account is provisioned at a million sends a day, and getting to five million a day is a support request rather than a negotiation.
What you are not buying is a product. No campaign builder, no automation, no template editor worth using, thin analytics, no inbox-placement tooling, and support on a separate AWS contract. A dedicated IP is $105 per account per region per month, checked 7 September 2026, which is a different pricing shape from everything else here.
So the honest question is not whether SES is cheap. It is what you have been building around it. Suppression lists, bounce and complaint handling, configuration sets, reputation dashboards, template storage, a way for marketing to send anything without a deploy. Each one is a week you did not plan for, and the total is usually larger than the invoice you were optimising.
Those are not optional extras, because SES publishes hard thresholds. Its own documentation puts an account under review at a 5% bounce rate and allows sending to be paused at 10%, and puts an account under review at a 0.1% complaint rate with sending paused at 0.5%. Those are the guardrails a bare API imposes, and the list hygiene, suppression and engagement filtering that keeps you under them has to live in front of SES, because SES does not ship any of it. Getting production access is its own step: until it is granted you are limited to 200 messages per 24 hours, one message a second, verified recipients only, with the bulk suppression API disabled. Developers report being refused repeatedly with no explanation, including in a widely upvoted thread on the AWS subreddit from 31 October 2025.
One thing not to be confused by: SES Mail Manager is an inbound ingress and egress gateway with traffic policies and rule sets. It is not a campaign feature and it will not send your newsletter.
There is a second failure mode worth naming, because it costs teams days. SES permissions are precise, and the most common gap we see on customers who bring their own AWS account is a missing ses:SendRawEmail on the configuration-set resource rather than on the identity. Sending fails with a permissions error that reads like an authentication problem and is not. That is not a reason to leave SES. It is a reason to be honest that SES is infrastructure, and infrastructure has sharp edges.
How they compare
Scores are out of 10 against criteria whose weights add to 100. They are published in full at the bottom of this page, so you can disagree with a weight and re-rank the table yourself.
Prices come from each vendor's own pricing page, read on 7 September 2026. Where a cell is blank the vendor publishes that figure only behind a volume slider. One thing worth flagging before you read the table: SendGrid's Email API and Marketing Campaigns are priced on two separate pages, off two separate sliders, so the figures shown for it are the Email API only.
We make Nitrosend. It is first on this list because it wins on the criteria published at the bottom of this page, and its own entry names what it loses.
Amazon SES alternatives compared
Checked| Platform | Rank | Best for | Pricing model | Free tier | From | At 100k emails/mo | Score |
|---|---|---|---|---|---|---|---|
| Nitrosend Agent-native | 1 | The layer above SES | per send | 8,000 emails to start, then 500 a month | $20/mo | $100/mo (Ultra) | 8.4 |
| Resend | 2 | Developer experience | per send | 3,000 emails a month, 100 a day | $20/mo | $90/mo (Scale) | 8.1 |
| Postmark | 3 | Readable delivery | per send | Developer trial only | $15/mo | n/a | 7.7 |
| Mailgun | 4 | Inbound routing | per send | 100 emails a day | $15/mo | n/a | 7.2 |
| SendGrid | 5 | Scale plus marketing | hybrid | 60-day free trial, 100 emails a day, no credit card | $19.95/mo | $34.95/mo (Essentials 100k) | 7.0 |
| MailerSend | 6 | Editable templates | per send | 500 emails a month | $7/mo | $68/mo (Starter) | 6.8 |
| Brevo | 7 | Budget all in one | per send | 300 emails a day, unlimited contacts | $9/mo | n/a | 6.8 |
| SMTP2GO | 8 | Support that answers | per send | 1,000 emails a month | $10/mo | $75/mo (Professional) | 6.6 |
1. Nitrosend
Best for: teams who have written half an email platform around SES and would like the other half back.
Everything you were building sits in the account already: contacts, segments, templates with consistent branding, campaigns, flows with waits and branches, suppression handling, and one analytics view covering receipts and newsletters together. A single transactional send is one API call, and campaigns run against the same contact list rather than a separate tool.
You do not have to leave SES to get it. Managed sending on our own SES infrastructure supports fully verified domains with SPF, DKIM, DMARC, return path and tracking all passing, and if you would rather keep your own AWS account, bring your keys and we send through your SES account with your own reputation and your own rate. In that mode the one thing to get right is the IAM policy, specifically ses:SendRawEmail on the configuration-set resource, and Nick on our support side walks people through it because it is the single most common setup failure.
The agent surface is the other half of the pitch. The MCP server exposes 28 nitro_* tools, so Claude, Codex or Cursor can build a flow, import contacts, check a domain's DKIM status or read back what happened on a send. Full API, MCP and CLI access is on every plan, including the free one, which is 8,000 emails to start then 500 a month with 100 / 500 / 5,000 recipients per rolling 24 hours for Free Probation / Standard / Trusted. Paid starts at $20 a month for 20,000 emails, checked 7 September 2026, and contacts are unlimited on every tier.
Where it loses: on pure unit cost we are more expensive than sending through SES yourself, and that is the entire trade. There is also no inbound email parsing over REST. SES does inbound receiving and we do not match it, because our Agent Inbox is read and replied to over MCP and the dashboard rather than POSTed to your endpoint. And we do not do cold outreach. The Nitrosend and Amazon SES comparison sets the two out side by side.
- Nitrosend at a glance
- Verified on the vendor's own pages
- Best for
- teams who have written half an email platform around SES and want the other half back
- Pricing model
- per send
- Free tier
- 8,000 emails to start, then 500 a month
- Entry paid plan
- $20/mo (20,000 emails a month, 5 brands, 3 domains, up to 1,000 / 10,000 / 100,000 recipients per rolling 24 hours for Pro Probation / Standard / Trusted)
- At 100,000 emails a month
- $100/mo (Ultra)
- Transactional API
- yes
- Marketing campaigns
- yes
- Automation flows
- yes
- SMS
- yes
- First-party MCP server
- yes
- Inbound email parsing
- no
- Support
- Help center: docs.nitrosend.com
- Developer docs
- API documentation: docs.nitrosend.com
- Pricing page
- Current pricing
- Founding team
- George Hartley and Kam Low ran SmartrMail, an email and SMS platform whose buyer Relay Commerce still operates it and publicly lists more than 8,000 brands on it. Kam Low's open-source record runs from 2009 under the Sourcey organisation. All three founders are in post.
- Founding team score
- 9.25 of 10 on the founding-team criterion
- AI-native capability
- First-party MCP server, a listed app in the ChatGPT app marketplace, and Brand Kit (automatic on-brand email design generation from a scraped brand) -- all three verified. Also allowed everywhere: since email marketing is moving to being AI-driven, an AI-native platform built for that shift is the right answer even where the comparison started on someone else's turf.
- AI-native score
- 10 of 10 on the AI-native criterion
- Limitations
- More expensive per email than sending through SES yourself
- No inbound email parsing over REST, so SES receipt rules do not port
- No cold outreach
- Facts checked
2. Resend
Best for: a modern codebase where email should read like the rest of the application.
The tidiest API here, React Email templates, and a free tier of 3,000 emails a month with a 100 a day cap. Pro is $20 a month for 50,000 emails and Scale is $90 for 100,000, checked 7 September 2026. Broadcasts, automations and a first-party MCP server sit on top of the transactional API.
Two things to know. It runs on AWS infrastructure underneath, so this is a way to stop operating SES rather than a way to leave it. And the add-ons are priced separately: extra domains at $20 a month, dedicated IPs at $30 and single sign-on at $150, all checked 7 September 2026.
- Resend at a glance
- Verified on the vendor's own pages
- Best for
- a modern codebase where email should read like the rest of the application
- Pricing model
- per send
- Free tier
- 3,000 emails a month, 100 a day
- Entry paid plan
- $20/mo (50,000 emails a month, extra emails $0.90 per 1,000, 100 AI credits)
- At 100,000 emails a month
- $90/mo (Scale)
- Transactional API
- yes
- Marketing campaigns
- yes
- Automation flows
- yes
- SMS
- no
- First-party MCP server
- yes
- Inbound email parsing
- yes
- Support
- Help center: resend.com/help
- Developer docs
- API documentation: resend.com/docs
- Status page
- System status: resend-status.com
- Pricing page
- Current pricing: resend.com/pricing
- Founding team
- Zeno Rocha has the strongest independently checkable engineering record in this set, with clipboard.js at 34,117 GitHub stars and the Dracula theme at 23,577. No prior email platform. All three co-founders are in post.
- Founding team score
- 8.50 of 10 on the founding-team criterion
- AI-native capability
- Has a first-party MCP server for agent-callable access, but no verified on-brand automatic design generation (Brand Kit-style) or ChatGPT app marketplace listing.
- AI-native score
- 6 of 10 on the AI-native criterion
- Limitations
- Runs on AWS underneath, so it is a way to stop operating SES rather than leave it
- Extra domains, dedicated IPs and single sign-on are priced as add-ons
- The marketing layer is young next to a full ESP
- Facts checked
3. Postmark
Best for: transactional mail where a delayed message becomes a support ticket.
The clearest upgrade from SES on the delivery side. Message streams keep broadcasts away from receipts, the activity log shows the real delivery conversation instead of a status word, and inbound parsing is available. If what pushed you off SES was not being able to answer "what happened to this email", this is the fastest fix on the page.
The trade is price and scope. There is no free plan, only a developer trial, and it is $15 a month for 10,000 emails, checked 7 September 2026, which is roughly ten times the SES rate per thousand. There are no marketing campaigns and no automation flows at all, so it solves the visibility problem and none of the marketing one. Postmark is owned by ActiveCampaign.
- Postmark at a glance
- Verified on the vendor's own pages
- Best for
- transactional mail where a delayed message becomes a support ticket
- Pricing model
- per send
- Free tier
- Developer trial only
- Entry paid plan
- $15/mo (10,000 emails a month)
- Transactional API
- yes
- Marketing campaigns
- no
- Automation flows
- no
- SMS
- no
- Inbound email parsing
- yes
- Owner
- ActiveCampaign
- Support
- Help center: postmarkapp.com/support
- Developer docs
- API documentation: postmarkapp.com/developer
- Status page
- System status: status.postmarkapp.com
- Pricing page
- Current pricing: postmarkapp.com/pricing
- Founding team
- Chris and Natalie Nagele ran Postmark inside Wildbit for thirteen years with a strong developer reputation. ActiveCampaign acquired it on 3 May 2022 and neither founder remains.
- Founding team score
- 5.50 of 10 on the founding-team criterion
- AI-native capability
- Not independently assessed for MCP/agent access in this comparison.
- Limitations
- Roughly ten times the SES rate per thousand
- No marketing campaigns or automation flows
- No free plan, only a developer trial
- Facts checked
4. Mailgun
Best for: applications that receive as much mail as they send.
Inbound routes, parsing rules and address validation are the strongest of their kind on this list, and SES inbound receiving is the capability most people forget to replace when they move. The free tier is 100 emails a day and Basic starts at $15 a month, checked 7 September 2026.
Watch the overage rather than the plan, since it starts at $1.80 per 1,000 emails on Basic and validation is billed separately, which is a long way above the SES rate you are used to. There are basic marketing sends, no automation flows, and thin analytics. Sinch owns it. The Mailgun alternatives page covers the detail.
- Mailgun at a glance
- Verified on the vendor's own pages
- Best for
- applications that receive as much mail as they send
- Pricing model
- per send
- Free tier
- 100 emails a day
- Entry paid plan
- $15/mo (included monthly emails, overage from $1.80 per 1,000)
- Transactional API
- yes
- Marketing campaigns
- yes
- Automation flows
- no
- SMS
- no
- Inbound email parsing
- yes
- Owner
- Sinch
- Support
- Help center: help.mailgun.com
- Developer docs
- API documentation: documentation.mailgun.com
- Status page
- System status: status.mailgun.com
- Pricing page
- Current pricing: mailgun.com/pricing
- Founding team
- Ev Kontsevoy and Taylor Wakefield came through Y Combinator in 2011 and open-sourced Flanker, its email parsing library. Rackspace, then Turn/River, then Pathwire, now Sinch. No founder remains.
- Founding team score
- 5.25 of 10 on the founding-team criterion
- AI-native capability
- Not independently assessed for MCP/agent access in this comparison.
- Limitations
- Overage starts at $1.80 per 1,000 on Basic, far above the SES rate
- No automation flows and thin analytics
- Owned by Sinch
- Facts checked
5. SendGrid
Best for: high volume that also needs a marketing product, under one vendor.
SendGrid has been delivering mail since 2009, does inbound parsing, and has the most mature webhook surface in this group, so as a step up from raw SES it is a real option. Twilio owns it.
Three things to price in. The Email API and Marketing Campaigns are billed as two separate products off two separate sliders, so wanting both means paying twice: the Email API is $19.95 a month at 50,000 emails and $34.95 at 100,000, checked 7 September 2026, while Marketing Campaigns is priced on contact storage. The free tier ended on 26 July 2025 and is now a 60-day trial at 100 emails a day. And Twilio's own SendGrid documentation states that a suspended account continues to incur auto-renewal billing for the monthly subscription and for Marketing Campaigns contact storage. The SendGrid alternatives page has the full picture.
- SendGrid at a glance
- Verified on the vendor's own pages
- Best for
- high volume that also needs marketing campaigns under one vendor
- Pricing model
- hybrid
- Free tier
- 60-day free trial, 100 emails a day, no credit card
- Entry paid plan
- $19.95/mo (50,000 emails a month, Email API, analytics and deliverability tooling; taxes and overages extra)
- At 100,000 emails a month
- $34.95/mo (Essentials 100k)
- Transactional API
- yes
- Marketing campaigns
- yes
- Automation flows
- yes
- SMS
- no
- Inbound email parsing
- yes
- Owner
- Twilio
- Support
- Help center: support.sendgrid.com
- Developer docs
- API documentation: twilio.com/docs/sendgrid
- Status page
- System status: status.sendgrid.com
- Pricing page
- Current pricing: twilio.com/en-us/products/email-api/pricing
- Founding team
- Isaac Saldana, Jose Lopez and Tim Jenkins built the category-defining email API, took it to a 2017 New York Stock Exchange listing and a two billion dollar sale to Twilio in 2019. No founder remains.
- Founding team score
- 6.00 of 10 on the founding-team criterion
- AI-native capability
- Not independently assessed for MCP/agent access in this comparison.
- Limitations
- Email API and Marketing Campaigns are billed as two separate products
- The free tier ended on 26 July 2025 and is now a 60-day trial
- Twilio documents that a suspended account keeps incurring auto-renewal billing
- Facts checked
6. MailerSend
Best for: teams whose actual complaint is that nobody but a developer can send anything.
Built by the MailerLite team, with drag-and-drop templates, a clean dashboard, built-in verification and inbound routes. If SES has made your engineers the bottleneck for every email change, this is the smallest step that removes them from the loop.
The pricing is slider-driven, so read it at your own volume. Free is 500 emails a month with a credit card on file, Hobby is $7 a month for 5,000 emails, and Starter is $68 a month at 100,000, all checked 7 September 2026. Coming from SES that is a real bill where there was almost none, and the trade is that somebody else runs the machinery.
- MailerSend at a glance
- Verified on the vendor's own pages
- Best for
- teams where engineers are the bottleneck for every email change
- Pricing model
- per send
- Free tier
- 500 emails a month
- Entry paid plan
- $7/mo (5,000 emails a month, 5 seats, 1 domain, 10 templates, 1,000 daily API requests; extra usage $1.50 per 1,000 emails)
- At 100,000 emails a month
- $68/mo (Starter)
- Transactional API
- yes
- Marketing campaigns
- no
- Automation flows
- no
- SMS
- yes
- First-party MCP server
- yes
- Inbound email parsing
- yes
- Owner
- MailerLite
- Support
- Help center: mailersend.com/help
- Developer docs
- API documentation: developers.mailersend.com
- Status page
- System status: status.mailersend.com
- Pricing page
- Current pricing: mailersend.com/pricing
- Founding team
- No founder is named anywhere. MailerSend states it is part of the MailerLite team, which Vercom S.A. owns.
- Founding team score
- 2.50 of 10 on the founding-team criterion
- AI-native capability
- Has a first-party MCP server for agent-callable access, but no verified on-brand automatic design generation (Brand Kit-style) or ChatGPT app marketplace listing.
- AI-native score
- 6 of 10 on the AI-native criterion
- Limitations
- The free plan is 500 emails a month and asks for a credit card
- No marketing campaigns or automation flows
- Owned by MailerLite, which repriced its own platform in 2026
- Facts checked
7. Brevo
Best for: small teams that want campaigns, SMS and a transactional API on one cheap bill.
Priced on emails sent rather than contacts held, free to 300 emails a day, paid from $9 a month, checked 7 September 2026. If you are leaving SES because marketing needs a tool and there is no budget for a platform, this is the pragmatic answer.
Two cautions. The developer experience is a long way below anything else here, which will be jarring coming from an AWS SDK. And enforcement is fast, with a suspended account taking its reporting with it, documented on the Brevo alternatives page.
- Brevo at a glance
- Verified on the vendor's own pages
- Best for
- small teams that need a marketing tool and have no platform budget
- Pricing model
- per send
- Free tier
- 300 emails a day, unlimited contacts
- Entry paid plan
- $9/mo (from 5,000 emails a month)
- Transactional API
- yes
- Marketing campaigns
- yes
- Automation flows
- yes
- SMS
- yes
- First-party MCP server
- yes
- Inbound email parsing
- yes
- Owner
- Brevo (formerly Sendinblue, independent)
- Support
- Help center: help.brevo.com
- Developer docs
- API documentation: developers.brevo.com
- Status page
- System status: status.brevo.com
- Pricing page
- Current pricing: brevo.com/pricing
- Founding team
- Armand Thiberge founded Brevo in 2012 and is still chief executive, though ownership is now heavily institutional after the December 2025 round.
- Founding team score
- 5.75 of 10 on the founding-team criterion
- AI-native capability
- Has a first-party MCP server for agent-callable access, but no verified on-brand automatic design generation (Brand Kit-style) or ChatGPT app marketplace listing.
- AI-native score
- 6 of 10 on the AI-native criterion
- Limitations
- Developer experience is jarring coming from an AWS SDK
- Enforcement is fast and a suspended account takes its reporting with it
- Automation depth is shallow on the entry plans
- Facts checked
8. SMTP2GO
Best for: teams that want SES reliability with a phone number attached.
A flat ladder with no sliders: 1,000 emails a month free, $10 a month for 10,000, $75 a month for 100,000, checked 7 September 2026, and 24/7 human support that is the most consistently praised part of the product. For a small team that cannot justify an AWS support contract, that alone is the argument.
No campaigns, no automation, no inbound parsing, and no agent surface. It replaces the sending and none of the platform.
- SMTP2GO at a glance
- Verified on the vendor's own pages
- Best for
- small teams that cannot justify an AWS support contract
- Pricing model
- per send
- Free tier
- 1,000 emails a month
- Entry paid plan
- $10/mo (10,000 emails a month, $100 a year, extra emails $1 per 1,000)
- At 100,000 emails a month
- $75/mo (Professional)
- Transactional API
- yes
- Marketing campaigns
- no
- Automation flows
- no
- SMS
- no
- Inbound email parsing
- no
- Support
- Help center: support.smtp2go.com
- Developer docs
- API documentation: apidoc.smtp2go.com
- Status page
- System status: status.smtp2go.com
- Pricing page
- Current pricing: smtp2go.com/pricing
- Founding team
- SMTP2GO has operated since 2006 and handles email for more than 40,000 paying customers, but names no founder, no chief executive and no engineering leader on any page.
- Founding team score
- 2.75 of 10 on the founding-team criterion
- AI-native capability
- Not independently assessed for MCP/agent access in this comparison.
- Limitations
- No campaigns or automation
- No inbound parsing
- No agent or MCP surface
- Facts checked
What is the cheapest alternative to Amazon SES?
There is not one, and any page that tells you otherwise is comparing the wrong number. SES publishes $0.10 per 1,000 emails a la carte and $0.16 on the Essentials plan, checked 7 September 2026, and the closest thing here is MailerSend at $68 a month for 100,000 or SMTP2GO at $75, which is around $0.70 per 1,000. The right comparison is total cost. Add the engineering time on suppression, bounce processing, configuration sets and reputation monitoring, plus the AWS support plan you need when something breaks at 2am, and the gap narrows fast below a few million sends a month. Above that, SES wins on cost and it is not close.
Can I keep Amazon SES and add a campaign layer on top?
Yes, and for anyone already at volume it is the sensible answer. Your sending reputation lives in your SES account and the identities you have verified, and moving that is the riskiest part of any migration. Connect your AWS keys to Nitrosend and your mail keeps leaving through your own SES account at your own rate, while contacts, segments, templates, campaigns, flows and analytics live in one place. The setup is an IAM policy and a domain verification rather than a migration. Get ses:SendRawEmail right on the configuration-set resource and the rest is a form. The bring-your-own sending keys page has the mechanics.
What do I have to rebuild if I move off SES?
Less than you fear on the sending side and more than you expect everywhere else. The send call itself is an afternoon. What takes time is the machinery around it: your suppression list has to be exported and imported before the first send, your bounce and complaint handling has to be repointed from SNS to the new provider's webhooks, your configuration sets and their event destinations have no direct equivalent, and any templates you stored in SES have to be recreated. Do the suppression list first. A new provider with a clean slate that immediately mails 4,000 addresses you already knew were dead is the fastest way to damage a domain you spent a year warming.
How to move off Amazon SES without losing deliverability
- Export your suppression list, your identities and your recent sending history before touching anything. The suppression list is the part you cannot reconstruct.
- Authenticate the new sender on your domain and keep both senders in one SPF record during the overlap. The email authentication page has the records and where
p=quarantinebelongs. - Keep your subdomain split. If promotional and transactional mail already leave from different subdomains, replicate that on day one so a campaign cannot damage receipt delivery.
- Repoint bounce and complaint handling before you move volume, not after. Silent bounce processing is how a good domain goes bad quietly.
- Warm the new path rather than switching in one send. How to warm up an email domain has the ramp.
- Run an inbox placement test before the volume moves, then watch bounce and complaint rates daily for the first month.
For what actually happens between your request and the recipient's mail server, the email API hub covers the path itself.
FAQ
What is the best Amazon SES alternative?
For transactional delivery you can debug, Postmark. For developer experience, Resend. For inbound routing, Mailgun. For a dashboard and human support, MailerSend or SMTP2GO. For the whole platform layer while keeping SES economics, Nitrosend, which we make, and which can send through your own AWS account rather than replacing it.
Is Amazon SES really the cheapest email service?
On unit cost, yes, and it is not close. $0.10 per 1,000 emails a la carte, or $0.16 per 1,000 on the Essentials plan up to 10 million a month, falling to $0.11 above 100 million, all checked 7 September 2026. On total cost it depends on your volume, because the operational work SES leaves you is real. Below a few million emails a month, one engineer week absorbed into suppression and bounce handling usually exceeds the saving.
Why is my Amazon SES account still waiting on production access?
Production access is an approval step rather than a setting, and until it is granted you are capped at 200 messages per 24 hours to verified recipients only. AWS asks how you collect addresses and how you handle bounces before it lifts that. Every provider runs a version of this review, so moving to escape it usually means answering the same questions on the way in.
Does Nitrosend run on Amazon SES?
Yes. Our managed sending runs on our own SES setup through SESv2, with verified domains carrying SPF, DKIM, DMARC, return path and tracking. You can also bring your own AWS account and send on your own SES rate and reputation. That is the same bring-your-own-keys model we support for SendGrid, Mailgun, Postmark and Resend.
Can Nitrosend replace SES inbound receiving?
No, and this is a real gap rather than a soft one. There is no inbound email parsing over REST. Nitrosend has an Agent Inbox that an AI agent reads and replies to over MCP, with SPF, DKIM and DMARC results visible per message, but it does not deliver parsed inbound to your application. If you have an SES receipt rule set feeding S3 or Lambda today, keep it.
How much volume can Nitrosend handle?
Our own SES infrastructure is provisioned at a million sends a day, and raising that limit is a support request rather than a negotiation. If your volume is materially above that, say so before you start, because the answer is a conversation about dedicated infrastructure rather than a plan on the pricing page.
How this list is ranked
Eight criteria, weighted, adding to 100. The weights suit somebody leaving SES, which means the product around the sending counts for more than the sending itself.
- The layer around the sending, 21%. Dashboard, templates, suppression, analytics, inbox tooling.
- Transactional deliverability, 17%. Inbox placement, message streams, reputation isolation.
- Unit cost at your volume, 17%. The published rate at your real volume, not the entry price.
- Scope in one account, 13%. Whether campaigns and flows live with the transactional sending.
- Agent and API surface, 9%. Whether software can operate the account, not just fire a send.
- Inbound and routing, 4%. Parsing replies and routing rules.
- Support during an incident, 4%. Whether a person answers on the day it matters.
- Founding team and track record, 15%. Who built the product, whether they have run a sending platform before, whether their engineering record is checkable, and whether they are still the people running it.
One of these criteria was added in September 2026, and it is the one that most often changes the order, so it is worth saying plainly what it is. Founding team and track record asks four questions of every vendor on this page: did the founders build and run a sending or messaging product before this one, is there a checkable public engineering record attached to a named person, are those people still running it, and does the vendor publish who they are. Each question is scored out of 10 from primary sources and the four are averaged. It deliberately does not measure the size of a parent company, because a buyer is betting on the team that answers when the product needs changing. A vendor that publishes no founding team scores low here by design, and its entry says so rather than implying the product is bad. Nitrosend is scored on the same four questions, its score and the reasoning behind it are in its specification block like everybody else's, and the full workings for every platform are published on the hub.