Mailtrap alternatives

Reachkit makes a competing cold email tool. It doesn’t send app email or catch test email, so it’s listed only for readers who came to Mailtrap to reach prospects. Every price below was checked in October 2026 on each vendor’s own pages.

Mailtrap sells three products separately (sending, a testing sandbox and marketing), so start from the one you’re replacing:

• Longer message history: Postmark, with 45 days on every plan, from $15 for 10,000 emails.
• An EU data center: Mailgun, also $15 for 10,000 on Basic.
• 30-day logs on a developer-first API: Resend, $20 for 50,000, the same as Mailtrap.
• A phone line and yearly billing: SMTP2GO, $15 a month or $150 a year.
• SMS and WhatsApp in the same account: MailerSend, from $7 a month.
• A newsletter tool next to the API: SendGrid, from $19.95 for 50,000.
• Millions of emails a month: Amazon SES, at $0.10 to $0.16 per 1,000.
• Client previews instead of the Sandbox: Email on Acid, now sold as Mailgun Inspect, from $99.
• Emailing prospects, which Mailtrap’s rules forbid: Reachkit, from $39 a month.

Switching won’t get you past account checks: each of the seven sending services here can review or suspend accounts and bans bought lists or requires opt-in.

Entries 1 to 7 replace Mailtrap’s sending API. Entry 8 replaces the Sandbox’s preview checks; entry 9 is for prospecting.

Postmark, which ActiveCampaign bought in 2022, is an API and SMTP service for the email your product triggers. Like Mailtrap it runs bulk mail on its own stream, and Postmark states that the two streams don’t share IP ranges.

Price (October 2026): Basic gives you 10,000 emails for $15, 50,000 for $55 and 125,000 for $115, and the free Developer plan stops at 100 a month. Inbound processing needs Pro ($16.50 at 10,000), unlimited users and domains need Platform ($18), and there’s no yearly plan.

Strengths:

• Every plan, the free one too, keeps 45 days of message activity. Mailtrap keeps 5 on Basic and 15 on Business.
• G2 rates Postmark 4.6 from about 30 reviews.

Drawbacks:

• The middle range costs more: at 50,000 emails you’d pay $55 here and $20 at Mailtrap.
• A person checks each new account before it can send widely, within a day on weekdays by Postmark’s account. On Trustpilot it rates 1.9 from 49 reviews, and several reviewers trace weaker support to the ActiveCampaign deal.

Versus Mailtrap: the same $15 entry price, the same split between app and bulk mail, and the same ban on bought lists. At 1.5 million emails they’re nearly level, $775 for Postmark Basic and $750 for Mailtrap Enterprise. Go deeper with the Postmark profile, Postmark alternatives or Mailgun vs Postmark.

Mailgun, a Sinch company that started in 2010, lets one account send through its US or its EU data center, by HTTP API or SMTP. Mailtrap’s own data regions page says only “Coming soon…”. Mailgun also sells two testing products on the side, Inspect for client previews and Optimize for inbox placement tests.

Price (October 2026): Basic is $15 for 10,000 emails. Foundation charges $35 at 50,000 and $75 at 100,000, Scale $90 at 100,000 up to $1,250 at 2.5 million, and a no-card free plan allows 100 a day. Optimize starts at $49 a month.

Strengths:

• Foundation’s $75 tier for 100,000 emails includes a dedicated IP, which on Mailtrap means Business at $85.
• Inbound routes hand incoming mail to your app or forward it. Trustpilot gives Mailgun 4.1 across roughly 1,550 reviews.

Drawbacks:

• Free and Basic hold logs for a single day, Foundation for 5, and Basic has one sending domain and no multi-user access.
• At 50,000 emails it costs $35 to Mailtrap’s $20. Phone help waits until Scale, and a number of Capterra reviews tell of accounts switched off with no notice.

Versus Mailtrap: you pay more under 100,000 emails for a European region now, and for previews, placement tests and sending under one roof. See the Mailgun profile and Mailgun alternatives.

Resend grew out of React Email, an open-source template project from 2022, and opened as a sending service in 2023. Code talks to it through REST or SMTP, while newsletters sit on a separate marketing plan billed by contacts.

Price (October 2026): the free tier covers 3,000 emails a month with a 100-a-day ceiling. Pro is $20 at 50,000 and $35 at 100,000, Scale starts at $90, and marketing is free to 1,000 contacts and $40 for 5,000. Below Enterprise you can only pay monthly.

Strengths:

• Every plan, free included, keeps 30 days of data, six times Mailtrap Basic, and accepts inbound email.
• The pricing page sets no seat cap, and Pro takes 10 domains. Mailtrap Basic stops at 3 users and 5 domains.

Drawbacks:

• Stricter limits: Resend wants bounces below 4% and complaints below 0.08%, against the 5% and 0.1% in Mailtrap’s guide. Of Resend’s 22 Trustpilot reviews (2.3 overall), most complain of suspensions.
• The API accepts 10 requests per second whatever you pay, unless support lifts it.

Versus Mailtrap: level at 50,000 ($20 each) and $5 dearer at 100,000. Mailtrap’s free 4,000 is larger, but its terms make that plan a one-person evaluation and ask commercial users to pay. Resend profile

SMTP2GO, founded in 2006 and based in New Zealand, takes email from apps over an HTTP API or SMTP, and from desktop mail clients and office scanners too.

Price (October 2026): Starter is $15 monthly or $150 yearly for 10,000 emails, plus $1.20 per extra 1,000. Professional, with its own dedicated IP, is $75 monthly or $750 yearly for 100,000, and a slider prices the volumes between. A free account gets 1,000 a month, 200 a day at most.

Strengths:

• Paid plans from $15 come with phone, chat and ticket support, where Mailtrap’s Free and Basic get weekday email.
• You can buy a year yourself, ask for all your money back within 30 days, and add as many teammates and sender domains as you like. Mailtrap routes yearly sending deals through sales, and may refund part within 30 days, only if you’ve used 30% of the plan or less.

Drawbacks:

• SMTP2GO’s help center says it handles outbound mail only, so whatever takes Mailtrap inbound today has to move elsewhere.
• A review kicks in after an account’s first 1,000 emails, and mail sent past that point sits in a queue until it’s done.

Versus Mailtrap: both charge $15 for 10,000, but paid SMTP2GO plans keep 30 days of reports, and $75 for 100,000 includes a dedicated IP. On Trustpilot it rates 4.8 across 1,914 reviews, and suspensions lead the complaints in the few low ones. See the SMTP2GO profile and SMTP2GO alternatives.

MailerSend, a sister product of MailerLite, sends app email by REST API or SMTP and takes inbound routes on every plan. Text messages come with Starter, and WhatsApp joined as an add-on in September 2026.

Price (October 2026): Hobby is $7 for 5,000 emails, Starter $35 for 50,000, and Professional $110 for 50,000. Paying yearly saves 10%, and the pricing FAQ quotes $68 for 100,000 on Starter. The free tier, 500 a month, needs a card and MailerSend’s approval.

Strengths:

• Login codes and alerts by text (the SMS API covers the US and Canada) from the account that sends your email.
• Yearly plans you buy yourself, and round-the-clock live chat from Starter. MailerSend holds 4.2 from 230 Trustpilot reviews and has replied to most of its critics.

Drawbacks:

• From 50,000 emails it costs more: $35 to Mailtrap’s $20, $68 to $30 at 100,000. Free and Hobby keep a day of activity.
• One-star reviews keep coming back to suspended accounts.

Versus Mailtrap: MailerSend only comes in under Mailtrap’s $15 at small volumes, $7 for 5,000 or $14.50 for 10,000 with overage, so the extra channels are the reason to move. MailerSend profile

SendGrid, a Twilio product since 2019, has an Email API for your app and Marketing Campaigns for newsletters, with editors, segments, signup forms and A/B tests. As at Mailtrap, you pay for each one on its own.

Price (October 2026): Essentials sends 50,000 emails for $19.95 or 100,000 for $34.95. Pro bundles a dedicated IP from $89.95 at 100,000 to $1,099 at 2.5 million, and there’s no free plan, only a 60-day, 100-a-day trial with no card. Newsletters start at $15 for 5,000 contacts and 15,000 sends.

Strengths:

• On shared IPs it costs what Mailtrap does: $19.95 to $20 at 50,000.
• Pro adds 2,500 address validations, and the Advanced newsletter tier brings automation from $60 for 10,000 contacts.

Drawbacks:

• Essentials gives one teammate and 3 days of searchable history, less than Mailtrap Basic’s 3 users and 5 days.
• Trustpilot shows 1.1 from 613 reviews, and on Capterra most reviews that raise account restrictions are negative.

Versus Mailtrap: with sending prices this close, pick SendGrid for the newsletter side. See Amazon SES vs SendGrid, Mailgun vs SendGrid and SendGrid alternatives.

Amazon SES is the sending service inside AWS. You call its API or SMTP endpoint and route incoming mail with receipt rules or Mail Manager; there’s no inbox for replies and no newsletter editor.

Price (October 2026): accounts opened since July 21, 2026 land on the Essentials plan, $0.16 per 1,000 emails, and can move to à la carte at $0.10. AWS’s plans post says new customers no longer get the SES free tier, though the SES FAQ still lists it.

Strengths:

• At 1.5 million emails, my math gives $150 on à la carte or $240 on Essentials (single recipients, no attachments). Mailtrap Enterprise asks $750.
• AWS publishes when it steps in: 5% bounces or 0.1% complaints. On G2 it holds 4.3 from about 200 reviews.

Drawbacks:

• New accounts begin in a per-region sandbox that sends 200 a day to verified addresses only, and leaving it takes a request AWS Support first answers within 96 hours.
• G2 reviewers list setup and support among the downsides.

Versus Mailtrap: 100,000 emails cost $10 to $16 against Mailtrap’s $30, and the gap widens from there. The trade is that DNS, AWS permissions and the sandbox exit land on your team. Amazon SES profile and Amazon SES alternatives

Email on Acid started in Denver in 2009 and joined Sinch in 2021. It screenshots an email in 100+ clients and devices before you send it, and since April 2026 Mailgun has sold a rebuilt version, Mailgun Inspect, as its successor. You mail each message to a test address or paste in the HTML.

Price (October 2026): Inspect Basic is $99 a month for 1,000 previews. Premium, $199 for 2,000, adds accessibility, HTML code, link, image and spam content checks, extra previews are $0.15 each, and month one is free. Both include unlimited users and API access.

Strengths:

• Screenshots at a price you can see. Mailtrap’s Device Previews are “Available on Request” on paid Sandbox plans, price unpublished.
• It doesn’t care which sending service on this list you choose.

Drawbacks:

• It doesn’t catch your staging mail the way the Sandbox does, and one test across 100 clients spends a tenth of Basic’s monthly previews.
• Its G2 (4.5 from 43) and Trustpilot (2.2 from 66) reviews mostly date from before Inspect. Spam tests go out from Mailgun’s IPs, so they judge content rather than your sending setup.

Versus Mailtrap: the Sandbox, from $17 a month for 500 test emails, already reports HTML, headers, spam score and client compatibility. Email on Acid adds the pictures. Email on Acid profile and Litmus alternatives

This is our product. Reachkit is a cold email platform, so it belongs here only if you opened a Mailtrap account to email people who never signed up for anything. It sends from real mailboxes, usually Google or Microsoft ones on domains kept apart from your app mail, through each provider’s own servers.

Price (October 2026): Growth is $39 a month ($29 billed yearly) for 15,000 campaign emails a month, 5,000 stored contacts and 1,000 lead credits, where 1 credit buys 1 verified lead. Done-for-you domains cost $15 a year and inboxes $5 a month; inboxes you connect yourself carry no per-inbox fee. The trial is 30 days, no card.

Strengths:

• The sending side is set up for you: Reachkit registers new lookalike domains, configures SPF, DKIM and DMARC, creates the inboxes and starts AI warmup on each one.
• Replies land in the Unibox, where AI labels each one (Interested, Not Interested, Out of Office and nine more) and you answer in the same thread. Mailtrap’s inbound reaches your code as a webhook, with no shared inbox for people.

Drawbacks:

• It can’t send password resets, receipts or newsletters, or catch staging email, so app teams still need one of the APIs above.
• Volume is slow on purpose: new inboxes should warm for at least 3 weeks, then start at 3 campaign emails a day and climb to a default 20. The CRM, API and webhooks start on Scale, at $99 a month.

Versus Mailtrap: Mailtrap charges by the email and sends from its shared IPs by default; Reachkit charges per workspace, with no seat fees, and spreads sends across many inboxes. Plans and add-ons are on the pricing page.

Start from the part of Mailtrap that isn’t working for you:

• You only want to replace one product. Mailtrap sells them separately, so you can keep the Sandbox and move sending, or the reverse. Mailtrap Local (July 2026) is a free, open-source sandbox for your own machine.
• Logs run out too soon. Postmark keeps 45 days on every plan, Resend 30, and SMTP2GO 30 days of reports on paid plans.
• Price. At 50,000 emails Mailtrap’s $20 matches Resend and SendGrid, and only SES costs much less ($5 to $8). At 100,000, Mailtrap Basic’s $30 beats every monthly plan here.
• Support you can call. SMTP2GO from $15.
• Keeping inbound mail. Mailtrap includes it on every plan. Postmark from Pro, Mailgun, Resend, MailerSend and SES take it too; SMTP2GO doesn’t.
• Prospecting. None of the seven APIs allow it; see entry 9.

Moving the API? Add the new provider’s DNS records beside Mailtrap’s, move one message type first, such as password resets, and watch bounces.

I wouldn’t leave Mailtrap over price: Basic sends 100,000 emails for $30. The reasons that hold up are message history, someone to call, an EU region or a yearly bill, and each points to a different entry above.

If a suspension pushed you out, every sending service here reviews accounts too. A documented opt-in record protects you better than a new vendor will.

And if you signed up to reach prospects, the problem was never Mailtrap: email APIs aren’t built for cold outreach, by their own rules. That needs separate domains and real mailboxes (how that setup works).

Related: the Mailtrap profile, Postmark alternatives and Mailgun vs Postmark.