
The Best: Four SMTP ports, twelve SDKs, and $19 for 50,000 emails
The Worst: Three days of log history free, seven paid, the shortest on this site
Elastic Email is the cheap, flexible, slightly rough option in this family, and it is honest about being all three.
The flexibility is real. It documents four SMTP ports, 25, 465, 587 and 2525, where MailerSend documents one and SparkPost two. Your SMTP username is simply your account email address, which is the least surprising convention in the whole category. And it publishes twelve official SDKs, including Rust, Perl, Bash and C#, the widest language coverage we have counted anywhere.
The price is the other draw. Free gives 3,000 emails a month to 1,000 contacts, capped at 100 a day. The Email API Starter plan is $19 a month for up to 50,000 emails. Outside Amazon SES, nothing in this comparison sends 50,000 emails for less.
The roughness is the log window. Three days on the free plan and seven days on paid, confirmed on two separate official pages. That is the shortest retention of any provider on this site. SparkPost gives ten days on every tier, Resend thirty on its free plan. If a customer asks on Monday about an email from the previous Monday, you cannot answer.
Excellent value for high-volume sending where you keep your own records, and a genuinely good fit for anything on an awkward network thanks to four ports. Export your logs on a schedule from day one, because the platform will not keep them for you.
| Hostname | smtp.elasticemail.com, or smtp25.elasticemail.com |
|---|---|
| Ports | 25, 2525, 587 and 465, all four listed in the documentation |
| Username | “Your Elastic Email Account SMTP Username defaults to your Elastic Email Account email address that you use to log in” |
| Password | A dedicated SMTP password, not your account password: “A unique password for your SMTP connection. Copy it and save it in a safe place.” |
| Encryption | “We support TLS 1.2 and SSL connections”, with “TLS 1.0 and 1.1 retroactively but we will be retiring these on March 31 2025” |
| API base | https://api.elasticemail.com/v4, version 4.0.0. Send with POST /emails. |
| API auth header | Not documented. The reference describes an API key with granular per-endpoint permissions but never states the header name. We looked twice and are not guessing. |
| API concurrency | “The API has a limit of 20 concurrent connections and a hard timeout of 600 seconds per request.” No requests-per-second figure is published. |
| Pagination | Maximum 1,000 items per response on list endpoints, including event loading |
| Max message size | Configurable per subaccount rather than a fixed published limit, so we do not quote one |
| Log retention | 3 days on Free, 7 days on paid. “Access email logs up to 3 (Free plan) or 7 days (paid plans) after each campaign.” |
| Official MCP | https://mcp.elasticemail.com, hosted, authenticated with an X-Auth-Token header |
Every hostname, port, retention window and price above was read twice from Elastic Email’s own documentation. One value is missing on purpose: the API authentication header name. Both passes returned a description of key-based authentication without naming the header. A specific header name circulates on third-party sites; it is not in Elastic Email’s documentation, so it is not on this page.
Only SMTP2GO, with eight, gives you more. Having 25, 465, 587 and 2525 all documented means that when one is blocked you have three fallbacks without opening a support ticket. MailerSend documents 587 alone; SparkPost documents 587 and 2525.
TypeScript for Angular, TypeScript with Axios, Ruby, Java, Go, Rust, Bash, C#, PHP, Perl, JavaScript and Python. For comparison, Mailgun publishes six, Resend nine, SparkPost five. Rust and Perl in the same list is an unusual combination and tells you this is maintained by people who take integration breadth seriously.
$19 a month for up to 50,000 emails on the Email API plan. Against MailerSend at $35 for the same volume, Mailgun at $35 for 50,000, and Resend at $20 for 50,000, Elastic Email is at or below the floor. Private IPs are $40 a month on Starter and $50 on Pro, which is more than SparkPost’s $20 but less than Mailgun’s $59.
The free plan is also genuinely usable: 3,000 emails a month to 1,000 contacts, capped at 100 a day, permanently.
Unusually for this family, Elastic Email sells both an Email API and an Email Marketing product, with contacts, lists, segments and campaigns. That makes it the closest thing here to Brevo’s shape: a relay and a marketing tool from one vendor. The marketing plan is $29 a month for 2,500 contacts and 37,500 emails.
The blog’s most recent post when we read it was dated 7 August 2026. On 29 July 2026 the company launched DMARCRadar, a DMARC monitoring tool. It also published a planned retirement of TLS 1.0 and 1.1 for 31 March 2025, which is the kind of security housekeeping that a coasting product does not bother with.
At mcp.elasticemail.com, maintained by the vendor’s support team, covering contacts, lists, segments, campaigns, templates and both transactional and bulk sending, plus a readiness health check. Authentication is a simple X-Auth-Token header rather than OAuth, which is easier to wire up and less secure than the OAuth implementations Resend and MailerSend ship.
This is the shortest retention window on this entire site, and it is confirmed on two independent official pages. Here is the field:
| Provider | Free plan | Paid |
|---|---|---|
| Resend | 30 days | 30 days |
| SMTP2GO | 5 days | About a month |
| SparkPost | 10 days | 10 days |
| MailerSend | 24 hours | 7 to 30 days by tier |
| Mailgun | 1 day | 1 to 30 days by tier |
| Elastic Email | 3 days | 7 days |
Elastic Email’s own help documentation gives the correct advice: “Since logs are stored for a limited time, it may be beneficial to export them if you plan to analyze the data later.” Treat that as a requirement, not a suggestion.
Capterra rates Elastic Email 3.9 across 77 reviews. G2 rates it 4.4 across 212. That 0.5-point gap is the widest we have measured on any platform in this project, wider even than GoHighLevel’s 0.4.
We cannot explain it without speculating, so we are flagging it rather than resolving it. What we can say is that the larger corpus is the more favourable one, and that the Capterra sub-scores are consistently low: ease of use 4.0, features 3.9, value for money 3.8, customer service 3.7. A buyer reading only G2 will form a materially different impression from one reading only Capterra.
That places Elastic Email in the bottom group on this site alongside SendGrid and GoHighLevel, well below the 4.2 to 4.8 band most of the category occupies. Given that logs vanish after three to seven days, support responsiveness matters more here than it does on a platform where you can investigate a problem yourself a fortnight later.
The documentation states that “campaigns and contacts endpoints are unavailable for Email API plans”. So if you buy Elastic Email as a relay, which is what this site is about, the majority of the MCP tool surface is switched off. It is still useful for sending and for the health check, and it is a long way short of what the marketing plans get.
What is published is a concurrency figure, 20 simultaneous connections with a 600-second hard timeout. There is no requests-per-second or per-minute number anywhere. And the webhooks page names sends, opens, clicks, bounces and unsubscribes as examples without publishing a complete event list, where SparkPost publishes 24 and MailerSend publishes 24.
Two independent Capterra reviewers also report that webhooks are not included in the standard Email API plan at all. We could not verify that against official documentation, so we record it as a user report worth checking before you build against it.
The careers page gives us a founding year of 2010, a headquarters in Szczecin, Poland, and a team “scattered across Canada, Costa Rica, the Philippines and Poland”. That is all. No legal entity, no founder names, no headcount, no ownership or funding history appears on any official page. We found no acquisition, which is not the same as establishing independence.
Twelve five-star reviews fall in September and October 2025, a concentration consistent with a solicitation campaign rather than a steady stream. We have seen the same shape on Selzy, on Omnisend and on iContact. It does not make those reviews false; it means the average is a picture of a moment.
Six categories, each out of 10, judged against the same evidence rules on every platform we cover. The overall is the unweighted arithmetic mean, rounded to one decimal: 7.0 + 5.0 + 7.0 + 5.5 + 8.0 + 7.5 = 40.0, divided by 6, equals 6.7.
Ease of use, 7.0. Four ports, a username that is just your email address, and twelve SDKs. Held down by a Capterra ease sub-score of 4.0 and an undocumented API auth header.
Automation, 5.0. Higher than the pure relays here because Elastic Email also sells a marketing product with contacts, segments and campaigns. Nowhere near a dedicated automation platform.
Deliverability, 7.0. No independent figure. DMARCRadar shipped in July 2026, private IPs are available on both paid tiers, and TLS housekeeping is current. Held down by three-to-seven-day retention, which makes investigating a placement problem genuinely hard.
Support, 5.5. A 3.7 Capterra customer service sub-score, in the bottom group on this site, against a much warmer 4.4 overall on G2’s larger corpus. Scored between the two.
Pricing value, 8.0. $19 for 50,000 emails, a permanent free tier of 3,000 a month, and private IPs from $40. The best value in this family after Amazon SES, and easier to start than Amazon SES.
API and MCP, 7.5. A v4 API, twelve official SDKs and an official hosted MCP server. Held down by no published rate limit, no published webhook event list, an undocumented auth header, and an MCP whose campaign and contact tools are disabled on Email API plans.
| Source | Score | Volume | Notes |
|---|---|---|---|
| G2 | 4.4 / 5 | 212 reviews | The larger corpus and the more favourable one. |
| Capterra | 3.9 / 5 | 77 reviews | Ease of use 4.0, features 3.9, value for money 3.8, customer service 3.7. Product ID 148326. No contamination detected. |
| Trustpilot | N/A | – | No verified listing found. |
| Inbox placement | No figure | – | Never included in the seedlist panel, which has since been discontinued. |
The half-point gap between these two is the widest we have measured across all thirty-six platforms in this project. Both listings confirm the correct product name and neither shows the contamination we found on SparkPost’s. We publish both and let you weigh them; if forced to choose, the 212-review corpus is the larger sample.
| Alternative | Our score | Take it instead if |
|---|---|---|
| SMTP2GO | 7.5 | You want eight ports instead of four, the best support scores on this site, and a free dedicated IP at 100,000 a month. It costs more. |
| MailerSend | 7.1 | You want every rate limit published and a fuller MCP implementation. Note it documents only one SMTP port and gives 24 hours of history on its cheap tiers. |
| Amazon SES | 6.3 | Volume economics dominate everything. $0.10 per thousand, in exchange for a sandbox, an IAM setup and no interface. |
The free plan gives 3,000 emails a month to up to 1,000 contacts, capped at 100 a day, permanently. On the Email API side, Starter is $19 a month for up to 50,000 emails and Pro is $49. On the Email Marketing side, Starter is $29 a month for 2,500 contacts and 37,500 emails, and Pro is $49. Private IPs cost $40 a month on Starter and $50 on Pro. No per-email overage rate is published; exceeding your allowance moves you to the next volume tier.
Host smtp.elasticemail.com, or smtp25.elasticemail.com. Four ports are documented: 25, 2525, 587 and 465. Your username defaults to the email address you log in with, and the password is a dedicated SMTP password that is separate from your account password. TLS 1.2 and SSL are supported; TLS 1.0 and 1.1 were scheduled for retirement on 31 March 2025.
On price, yes: $19 for 50,000 emails is the cheapest paid entry in this family outside Amazon SES, and it scales to ten million a month. The constraint to plan around is log retention, which is three days on free and seven on paid, the shortest on this site. Export your logs on a schedule if you will ever need to answer questions about past sends.
Yes, an official hosted one at mcp.elasticemail.com, maintained by the vendor’s support team and authenticated with an X-Auth-Token header carrying your API key. It covers contacts, lists, segments, campaigns, templates, transactional and bulk sending, and a readiness check. One important caveat: the documentation states that campaign and contact endpoints are unavailable on Email API plans, so a relay customer gets a much smaller tool surface than a marketing customer.
| Date | Change |
|---|---|
| 27 August 2026 | First publication. All 77 Capterra reviews reviewed; page one returned paraphrased rather than verbatim, so no direct quotation is taken from it. Every hostname, port, price, retention window and limit verified twice against Elastic Email’s own documentation, with retention cross-confirmed on two separate official pages. The API authentication header name is omitted because the documentation does not state it. Company facts sourced to the careers page. Product activity confirmed from a blog whose most recent post is dated 7 August 2026 and the DMARCRadar launch of 29 July 2026. |
This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.