6 Best SendPost Alternatives Tested in 2026
Four of the six alternatives on this page are platforms SendPost documents how to sit on top of, not replace. SendGrid, Amazon SES, Mailgun and Postmark each have a live setup guide in SendPost’s own documentation that describes them, in the vendor’s own words, as a Third-Party Sending Provider — complete with automatic webhook configuration, an auto-created IP pool and volume-based routing. For those four, “switch or stay” is the wrong question, and we say below which question to ask instead.
We scored and priced six alternatives against SendPost’s published position and ranked them by our internal score. SendPost is one of only two platforms among the 42 we rate that publishes no price at all — its own FAQ says a demo and an up-front financial commitment are required before you can use it — so every figure below is compared against a number SendPost will not show you. This is not a “top 50” listicle. Every alternative here is one we would recommend to someone specific, and we say who.
Why look for a SendPost alternative in 2026
The case for looking is not that SendPost got worse. It is that SendPost stopped selling to the person who is most likely to be reading this page.
Between 25 September 2023 and today, SendPost withdrew from self-serve entirely. The 2023 capture of its pricing page carried three named tiers, the line “You can get started for free and upgrade later” and two “Start For FREE” buttons pointing at a public signup. None of that exists in 2026. There is no grid, no price, no free tier and no trial. The vendor FAQ now reads, verbatim: “No, at the moment we require a demo and up front financial commitment to use SendPost.” The stated audience moved with it, from developers and early-stage startups to “ESPs and high-volume senders”. We can bracket that change between those two dates; we cannot date it more finely, because only one archive capture exists.
SendPost also stopped having its own website. Both sendpost.io and sendpost.io/pricing now redirect to a product page hosted on its sibling’s domain, canonical tag included. There is no SendPost pricing page anywhere to redirect to.
Do not trust the prices you will find in directories. Five comparison sites still publish $7, $197 and $997 for SendPost. Those are the 2023 tiers, taken off the web years ago, and two of the five also miscopy the volume attached to them. If a page quotes you a SendPost price in 2026, it is quoting an archive.
Our own numbers say the same thing in a different register. We score SendPost 4.5 on pricing value, a figure only six of the 42 platforms we rate fall below, and 5.8 overall, which only four fall below. Neither is a verdict on the product. Both are what happens when buyers cannot see a price. On top of that, SendPost publishes no rate limits at all, and the HTTP status table in its own API reference does not include a 429 — so there is no documented signal for what happens when you exceed a quota you were never shown.
6 SendPost alternatives at a glance
Ranked by our overall score. The Deliverability column is derived from our category rating: High is 8.0 and above, Medium is 6.0 to 7.9, Low is under 6.0.
| Platform | Score | Starting $ | Free plan | Best for | MCP | Deliverability | Verdict |
|---|---|---|---|---|---|---|---|
| Resend | 7.4 | $20/mo | 3,000/mo, 100/day | Developer experience and agent tooling | Yes | Medium | API/MCP 9.5 vs 6.5; $0.40/1k |
| Postmark | 7.1 | $15/mo | 100/mo, no expiry | Transactional delivery above all else | Yes | High | Deliverability 9.0 vs 5.5; value 5.0 |
| MailerSend | 7.1 | $7/mo | 500/mo, 100/day cap | Lowest paid entry with a real free tier | Yes | Medium | Cheapest entry here; logs 24h on Hobby |
| Amazon SES | 6.3 | $0.10/1k | Withdrawn 21 Jul 2026 | Raw cost per thousand at volume | Partial | High | Value 9.0, support 5.0 |
| Mailgun | 5.9 | $15/mo | 100/day, permanent | Log retention you can buy in steps | Yes | Medium | API/MCP 8.5; free logs last 1 day |
| SendGrid | 5.7 | $19.95/mo | None since 27 May 2025 | Per-thousand price at 50,000 | No | Low | The only one here we rate below SendPost |
Scores are SMTPedia overall ratings out of 10, not vendor figures. SendPost itself scores 5.8 overall and 5.5 on deliverability, which is Low by the threshold above; we publish that rather than omit it. Starting prices are the lowest published paid tier, captured 16 September 2026. SendPost has no Starting $ figure to compare against, because it publishes none.
Resend
Resend
Better for: the engineer who was going to write the integration anyway
Resend is the clean replacement, not the layer. If what drew you to SendPost was the API rather than the routing, Resend scores 9.5 on API and agent tooling against SendPost’s 6.5, ships an official MCP server where SendPost ships none, and costs $0.40 per thousand at its entry tier. You can also start without talking to anyone, which is the whole difference.
| Dimension | SendPost | Resend |
|---|---|---|
| Published price | None | $20/mo, 50,000 emails |
| Cost per thousand | Not published | $0.40 |
| Self-serve signup | Demo and commitment required | Yes, free tier |
| Free tier | None | 3,000/mo and 100/day |
| API and agent tooling | 6.5 | 9.5 |
| Official MCP server | No | Yes |
| Deliverability rating | 5.5 | 6.5 |
| Routes through your existing ESP | Yes, six providers | No |
What you give up: the control plane. Resend is somewhere you send from, not something you put above what you already send from. If your SendPost account is currently fronting an existing SendGrid, SES, Mailgun or Postmark account, moving to Resend means retiring that arrangement and the consolidated event stream and IP-pool management that came with it, not migrating it. Resend’s own deliverability rating of 6.5 is also the second-lowest of the six here — it wins on developer experience, not on placement.
Easy
2 to 4 hours
Swap the relay host and credentials, repoint webhooks, re-verify your sending domain. There are no contacts, lists or automations to carry across, because neither platform holds them.
$20/mo
Pro, 50,000 emails. Free tier at 3,000/mo.
Overage runs $0.90 per thousand. A dedicated IP is $30/mo and requires the Scale plan plus more than 3,000 emails a day.
Postmark
Postmark
Better for: the team whose receipts and password resets have to land
Postmark is the highest deliverability rating we award anywhere, 9.0, and it sits 3.5 points above SendPost’s 5.5. If the reason you are on this page is that transactional mail is going missing, this is the one to read first. It is also the one alternative here whose price you pay for that: $1.50 per thousand is the joint-highest on the page, and we score its pricing value 5.0.
| Dimension | SendPost | Postmark |
|---|---|---|
| Deliverability rating | 5.5 | 9.0 |
| Published price | None | $15/mo, 10,000 emails |
| Free tier | None | 100/mo, no expiry |
| Log retention | Not published | 45 days on every plan |
| API and agent tooling | 6.5 | 9.5 |
| Cost per thousand | Not published | $1.50, joint-highest here |
| Pricing value rating | 4.5 | 5.0 |
| Annual billing discount | Not published | None; the vendor says so explicitly |
Read this before you treat Postmark as a replacement: it is one of the four platforms SendPost publishes a Third-Party Sending Provider guide for. SendPost’s own documentation walks you through connecting an existing Postmark account with a Server API Token, an auto-created IP pool and automatic webhook configuration. If Postmark is where you want your mail to land, you do not have to leave SendPost to get there — and if you do leave, what you lose is not Postmark, it is the layer above it. Decide which of the two you were actually unhappy with. There is also a hard limit to know: Postmark’s free tier allows 100 emails a month and no overage at all, so it stops rather than bills.
Medium
1 to 2 days
Postmark separates transactional and broadcast into distinct Message Streams and enforces the split, so mail that was flowing through one SendPost pipe has to be sorted into streams before it will send. That sorting, not the credential swap, is the work.
$15/mo
Basic, 10,000 emails. Pro is $16.50 and Platform $18 at the same volume.
Overage is $1.80 per thousand on Basic, $1.30 on Pro and $1.20 on Platform. A dedicated IP starts at $50/mo and needs Pro or above plus 300,000 emails a month.
Read our Postmark review
We may earn a commission if you sign up through this link. It does not affect our score, which comes from the same rubric applied to every platform we rate.
MailerSend
MailerSend
Better for: the small sender who needs a published number today
MailerSend is the shortest distance between “I cannot get a price out of SendPost” and a running account. Paid starts at $7/mo for 5,000 emails, the free tier gives 500 a month, and it scores the same 7.1 overall as Postmark on a much better value rating. If your volume is small and your objection to SendPost is commercial rather than technical, start here.
| Dimension | SendPost | MailerSend |
|---|---|---|
| Published price | None | $7/mo, 5,000 emails |
| Pricing value rating | 4.5 | 7.5 |
| Free tier | None | 500/mo, capped at 100/day |
| Deliverability rating | 5.5 | 7.5 |
| API and agent tooling | 6.5 | 9.0 |
| Log retention | Not published | 24 hours on Free and Hobby |
| Dedicated IP | Included in the platform | Enterprise only, price not published |
| Routes through your existing ESP | Yes, six providers | No |
What you give up: forensics and dedicated IPs, and both bite at exactly the moment you need them. Hobby keeps 24 hours of logs, which means a delivery complaint that reaches you on Monday about Friday’s mail cannot be investigated at all; Starter at $35 raises that to 7 days and Professional at $110 to 30. A dedicated IP is Enterprise-only, gated behind more than 100,000 emails a week, and MailerSend does not publish what it costs. SendPost manages dedicated and shared IP pools as a core function, so this is a real capability loss, not a tier change.
Easy
2 to 4 hours
A relay swap and domain re-verification. Budget the extra time for rebuilding any templates you were holding in SendPost, since there is no import path between the two.
$7/mo
Hobby, 5,000 emails, or $1.40 per thousand.
Starter is $35 for 50,000, which works out at $0.70 per thousand — half the Hobby rate, so the step up pays for itself well before you reach the volume. Hobby overage is $1.50 per thousand.
Read our MailerSend review
We may earn a commission if you sign up through this link. It does not affect our score, which comes from the same rubric applied to every platform we rate.
Amazon SES
Amazon SES
Better for: the high-volume sender who already has AWS engineers
Pay-as-you-go SES is $0.10 per thousand with no monthly floor, which is why we score its pricing value 9.0, the highest on this page. At the volumes SendPost now sells to, nothing else here is close. The catch is the same one it has always been: SES gives you a sending pipe and expects you to build the rest, and we score its support 5.0.
| Dimension | SendPost | Amazon SES |
|---|---|---|
| Cost per thousand | Not published | $0.10 pay-as-you-go |
| Pricing value rating | 4.5 | 9.0 |
| Monthly minimum | Up-front commitment required | None on pay-as-you-go |
| Deliverability rating | 5.5 | 8.0 |
| Dedicated IP | Included in the platform | $24.95/mo, published |
| Support rating | 6.5 | 5.0 |
| Free tier | None | Withdrawn for new accounts on 21 July 2026 |
| Official MCP server | No | Partial |
Two things to weigh, and the first is the one nobody mentions: SES is a Third-Party Sending Provider in SendPost’s own documentation, with a setup guide covering IAM credentials, automated identity configuration and an auto-created IP pool. So “move to SES” may already describe what your SendPost account is doing. Check the Providers screen before you plan a migration — if SES is already the backend, leaving buys you the raw price but costs you the control plane above it. The second: SES withdrew its free tier for new accounts on 21 July 2026, replacing it with up to $200 of AWS credits spread over six months. You cannot open a new SES account today and test it for free indefinitely the way you could last year.
Hard
3 to 10 days
New accounts start in the SES sandbox and have to be granted production access before they can mail strangers, and sending-quota increases are reviewed rather than granted. Then there is everything SES does not ship: suppression handling, bounce processing and reporting are yours to build or buy.
$0.10 per 1,000
Pay-as-you-go, always available. Essentials is $0.16 per thousand with no fixed fee.
Pro adds a $105/mo platform fee plus $0.22 per thousand; Enterprise is $500/mo plus $0.23. A dedicated IP is $24.95/mo.
Mailgun
Mailgun
Better for: the developer who wants to prove the integration before paying for it
Mailgun’s 100 emails a day is a permanent allowance rather than a trial, which makes it the cheapest honest way to build and test a transactional integration end to end. It scores 8.5 on API and agent tooling against SendPost’s 6.5 and ships an official MCP server. Beyond the build phase the case narrows quickly, which is why it sits 5.9 overall.
| Dimension | SendPost | Mailgun |
|---|---|---|
| Published price | None | $15/mo, 10,000 emails |
| Free tier | None | 100/day, permanent |
| API and agent tooling | 6.5 | 8.5 |
| Official MCP server | No | Yes |
| Deliverability rating | 5.5 | 7.0 |
| Log retention, entry tier | Not published | 1 day on free, 5 on Foundation |
| Pricing value rating | 4.5 | 5.0 |
| Support rating | 6.5 | 5.0 |
What you give up, and one thing to check first: Mailgun is also a Third-Party Sending Provider in SendPost’s docs, with the same automatic webhook setup and volume-based routing as the others — so again, confirm what your account is actually doing before calling this a migration. On the numbers, Mailgun is the weakest value on this page after Postmark: we rate its pricing value 5.0 and its support 5.0, below SendPost’s 6.5 support. And the free tier keeps just 1 day of logs, so it is genuinely good for building and genuinely bad for running.
Easy
2 to 4 hours
Relay swap, domain verification, webhook repoint. If you need EU data residency, create the domain in the EU region at the outset — a domain cannot be moved between regions afterwards.
$15/mo
Basic, 10,000 emails, or $1.50 per thousand.
Foundation is $35 for 50,000, which is $0.70 per thousand and lifts log retention to 5 days. Scale is $90 for 100,000 with 30 days of logs.
SendGrid
SendGrid
Better for: the buyer whose only constraint is per-thousand price at 50,000
SendGrid earns its place here on one number and we are not going to pretend otherwise. Essentials is $19.95 for 50,000 emails, or $0.399 per thousand — cheaper than everything on this page except SES, and roughly a quarter of what Postmark or Mailgun charge per thousand at their entry tiers. If that is genuinely your binding constraint, it wins. On every other axis we measure, it is the weakest option listed.
| Dimension | SendPost | SendGrid |
|---|---|---|
| Cost per thousand at 50,000 | Not published | $0.399 |
| Published price | None | $19.95/mo, 50,000 emails |
| Overall rating | 5.8 | 5.7 |
| Deliverability rating | 5.5 | 5.0, the only Low on this page |
| Support rating | 6.5 | 3.5 |
| Free tier | None | None since 27 May 2025 |
| Official MCP server | No | No |
| Log retention, entry tier | Not published | 3 days on Essentials |
If deliverability is why you are leaving SendPost, this is not the move. We rate SendGrid 5.0 on deliverability against SendPost’s 5.5, and 3.5 on support against SendPost’s 6.5. It is the one platform in this comparison that scores lower overall than the platform you are considering leaving, and we include it because it is a real and widely bought option at its price point, not because it is an upgrade. It is also a Third-Party Sending Provider in SendPost’s documentation, which means the cheapest per-thousand rate here is already available to you without changing platforms. There has been no permanent free plan since 27 May 2025, only a 60-day trial capped at 100 emails a day, and a dedicated IP is excluded from Essentials entirely.
Easy
2 to 4 hours
Technically the simplest move here. Expect sender-identity verification before the first send, and note that Essentials keeps only 3 days of activity history, which is a downgrade on anything you are used to auditing.
$19.95/mo
Essentials, 50,000 emails, or $0.399 per thousand.
Essentials at 100,000 is $34.95. Pro at the same volume is $89.95 and is the first plan that includes a dedicated IP. Logs run 3 days on Essentials and 7 on Pro.
Leaving SendPost: what transfers and what does not
SendPost holds less of your business than a marketing platform would, which makes the mechanical migration unusually cheap and the strategic one unusually easy to get wrong.
The easy part is genuinely easy. SendPost is infrastructure: it holds no contact lists, no segments, no automations and no campaign history to export. A move is a relay hostname, a set of credentials, a re-verified sending domain and a repointed webhook endpoint. On four of the six platforms above we put that at two to four hours of real work.
The part that does not transfer is the layer itself. SendPost’s central idea is that you keep your account with SendGrid, Amazon SES, Mailgun, Postmark or SparkPost and let SendPost sit above it as a control plane, consolidating events, managing shared and dedicated IP pools and routing by volume. None of the six platforms above offers that, because none of them is that kind of product. If you leave, you are not migrating the control plane, you are deleting it and going direct.
The check worth doing before anything else. Open the Providers screen in SendPost and see what is configured. If a third-party provider is set, the mail you are unhappy about is already being delivered by that provider, and swapping to it directly will change your bill and your tooling but not your placement. If no provider is set, you are on SendPost’s own IPs and a move is a genuine change of sender. These two situations call for opposite decisions, and the page you are reading cannot tell them apart for you.
One commercial unknown to settle in writing. Because SendPost requires an up-front financial commitment and publishes no terms, we have no sourced information on notice periods, minimum terms or what happens to unused commitment when you leave. Do not assume you can stop at the end of a month. Ask for the exit terms in writing before you start moving traffic, and get the date your obligation actually ends.
Do not use a directory price to plan this migration. The $7, $197 and $997 figures still circulating on at least five comparison sites are the 2023 tiers and have not been purchasable for years. Any cost saving you calculate against them is fictional. The only number that means anything is the one on your own invoice.
SendPost alternatives: common questions
How much does SendPost cost in 2026?
It does not publish a price. There is no pricing page, no tier list and no public range. The vendor FAQ states that a demo and an up-front financial commitment are required before you can use the product, and billing is described as based on emails sent rather than on subscriber count. SendPost is one of only two platforms among the 42 we rate that publishes nothing at all. Any specific figure you find on a comparison site is from the pricing page that was removed after 2023.
Is SendPost shutting down?
No, and we looked specifically. There is no end-of-life notice, no acquisition and no rebranding announcement. What happened is narrower: sendpost.io stopped being a standalone site and now redirects to a product page on its sibling SendX’s domain, canonical tag included. The product is actively documented and its SDKs are maintained. It sells differently than it did, through demos rather than signups, and to ESPs rather than to startups.
Can I keep using SendGrid, SES, Mailgun or Postmark with SendPost instead of replacing it?
Yes, and this is the single most important thing to understand before choosing from the list above. SendPost publishes a dedicated setup guide for each of those four, describing them as Third-Party Sending Providers, with automatic webhook configuration, an auto-created IP pool and volume-based routing. Its own documentation calls this its core idea. Upstream plan limits still govern your throughput, so you are not escaping your provider’s quotas, but you do not have to choose between SendPost and those four platforms. You may already be using both.
Which alternative has the best deliverability?
Postmark, at 9.0 on our deliverability rating, which is the highest we award and 3.5 points above SendPost’s 5.5. Amazon SES follows at 8.0. Be aware that both are also Third-Party Sending Providers inside SendPost, so routing to them through your existing account is an option alongside moving to them outright.
Which is cheapest?
It depends on volume, and the ranking genuinely inverts. At small volume, MailerSend’s $7/mo Hobby plan is the lowest published paid entry on this page. At 50,000 emails, SendGrid Essentials is $19.95 and Resend Pro is $20, working out at $0.399 and $0.40 per thousand. At any serious volume Amazon SES pay-as-you-go wins outright at $0.10 per thousand with no monthly floor, provided you can absorb the engineering it does not do for you.
Does SendPost have an MCP server?
No. There is no Model Context Protocol server, first-party or otherwise. What exists is a set of MIT-licensed agent skills published jointly by SendX and SendPost, which is a different thing. Among the alternatives above, Resend, Postmark, Mailgun and MailerSend each ship an official MCP server; Amazon SES is partial and SendGrid has none. If agent tooling is what you are shopping for, Resend scores 9.5 on our API and agent tooling rating against SendPost’s 6.5.
What rate limits does SendPost enforce?
None that it publishes, and the absence is documented rather than merely unfound: the HTTP status code table in SendPost’s own API reference does not list a 429. That means there is no published signal for a client to detect throttling. When you negotiate your commitment, ask what the throughput ceiling is and what happens when you cross it, because you will not find the answer in the documentation.
Should I trust SendPost’s review scores?
Treat them as no information at all. SendPost carries ratings near the top of the scale on G2, Capterra and SoftwareAdvice, but each of those is built on three reviews, and SoftwareAdvice discloses that two of its three reviewers were offered an incentive. That is not a sample you can draw a conclusion from in either direction. Our own 5.8 comes from the same six-category rubric we apply to all 42 platforms, and the 4.5 pricing value component reflects the absence of a published price as much as the product.
This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.
