5 best SendGrid alternatives for email delivery in 2026, compared
Five SendGrid alternatives (Lettr, Mailtrap, Postmark, Amazon SES, and Mailgun) compared on free tiers, pricing at 50,000 and 100,000 emails a month, traffic separation, and what each one is actually good at.
This article compares five SendGrid alternatives in key areas and discusses what each one is good at. Teams go looking for SendGrid alternatives not because of SendGrid's API, but because of pricing and support. Their free plan went away in May 2025, and responsive support and dedicated IPs both start at $89.95 a month, so if you're on a lower plan, you have to file tickets to receive support.
The best SendGrid alternatives for email delivery in 2026 are Lettr, Mailtrap, Postmark, Amazon SES, and Mailgun.
One disclosure: Lettr is our product. Every price and claim about SendGrid and the other four platforms was verified on their public pricing pages and documentation at the time of publication.
Best SendGrid alternatives compared
| Provider | Best for | Free tier | 50,000/mo | 100,000/mo | Traffic separation |
|---|---|---|---|---|---|
| Lettr | Full tooling and marketing included at $30 per 100,000 | 3,000/mo | $15 | $30 | Transactional and marketing streams |
| Mailtrap | Separate sending streams and per-provider analytics | 4,000/mo (150/day) | $20 | $30 | Transactional and bulk on separate IP pools, every plan |
| Postmark | Delivery speed | 100/mo, permanent | ~$68.50 | ~$133.50 | Message Streams |
| Amazon SES | Lowest cost per email | $200 AWS credits for new accounts | ~$5 | ~$10 | Configuration sets, built by you |
| Mailgun | Pre-send address validation | 100/day | $35 | $90 | Separate domains, manual setup |
1. Lettr: best for full-featured sending with marketing in one account
Lettr ships an email API alongside an SMTP relay, with the rest of the email stack (visual editor, per-email analytics, and marketing campaigns) in the same account rather than spread across vendors. Developers integrate once; after that, marketers edit templates and run campaigns without filing tickets. And statistics are kept per message, with each email carrying its own record of opens, clicks, bounces, and delivery state, queryable on its own rather than folded into a daily total.
Key features
Deliverability in Lettr is treated as infrastructure rather than an add-on, as Lettr runs on the proven sending systems of Ecomail, its sister company and major Central European emailing platform. Lettr walks you through SPF, DKIM, and DMARC with real-time validation, suppresses bounces and complaints automatically, and monitors six major blocklists so you hear about a listing before your customers do. Dedicated IPs come with automatic warm-up.
The inbuilt Topol editor handles template design, backed by a templating language that supports conditionals, loops, and snippets, which keeps copy edits out of your deploy pipeline. Click tracking runs over HTTPS on your own custom tracking domain, not a shared one.
Alerting is real time, firing when bounce rates jump or a domain lands on a blocklist. Marketing Audiences and Campaigns sit in the same account, on their own sending streams, so a campaign that draws complaints leaves password reset reputation alone. Typed SDKs cover PHP and Laravel, Node.js, Go, Java, and Rust, and an MCP server lets teams manage templates and sending straight from AI assistants. The whole platform is EU-hosted, and GDPR and CCPA compliant.
Pricing
The permanent free tier is 3,000 emails monthly. Beyond that, 50,000 costs $15 and 100,000 costs $30, undercutting Mailgun by half and Postmark by around 75%. Full tiers are described on Lettr's pricing page.
The tradeoff: this is a newer product than the rest of the field, and pricing reflects that.
2. Mailtrap: best for separating transactional and bulk traffic
Mailtrap Email API is an email sending platform built for developer and product teams that put deliverability first. Transactional and bulk mail run on separate sending streams with independent IP pools, on every plan including the free one, so neither stream can damage the other's reputation. Delivery data drills down by mailbox provider, sending domain, and stream instead of reporting a single aggregate rate.
Key features
SPF, DKIM, and DMARC configure themselves once the DNS records are in, DKIM keys rotate monthly, and dedicated IPs on Business warm up on their own. Eight official SDKs cover Node.js, PHP, Ruby, Python, Java, .NET, Go, and Elixir, and setup takes about five minutes. Teams building with coding agents get an MCP server, AI inbox agent, and official agent skills. Inbound runs on the same API token as sending, with hosted inboxes that need no MX records and a webhook that returns each incoming message as parsed JSON.
Pricing
The free plan allows 4,000 monthly emails behind a 150-a-day ceiling. Basic prices 50,000 at $20 and 100,000 at $30. Moving to Business, $85 at the same 100,000 volume, brings a self-warming dedicated IP, SSO, reputation monitoring, and round-the-clock priority support.
The tradeoff: 24/7 support starts at Business, so free and Basic accounts get email support on weekdays only.
3. Postmark: best for delivery speed
Postmark has optimized for one thing for over a decade, which is getting transactional mail into the inbox fast. Every new account goes through manual review before live sending switches on. Annoying for a day, and the reason the shared pools stay clean for everyone already on them. If a delayed 2FA code turns into a support ticket in your product, that is a trade most teams will take.
Key features
Message Streams split transactional, broadcast, and inbound mail across dedicated pools at the infrastructure level. Logs stay available for 45 days, longer than anything else here, and every plan gets the full analytics set with no tier gating. Bounce classification and suppression happen without setup. Official SDKs exist for Node.js, PHP, Python, Ruby, .NET, Java, and Go.
Pricing
The free Developer tier covers 100 emails a month and does not expire. Pro runs roughly $68.50 for 50,000 and $133.50 for 100,000. A dedicated IP costs $50 a month, and requires a Pro plan or higher, as well as 300,000 monthly sends.
The tradeoff: the price climbs steeply past 50,000, and since the ActiveCampaign acquisition reviews report stricter approval and slower support.
4. Amazon SES: best for lowest cost per email
At 10 cents per thousand messages, Amazon SES bills out to roughly $10 monthly for 100,000 emails. Nothing else here is in the same low price range. That rate buys transport alone, because SES is plumbing, not a product, which is either the appeal or the dealbreaker depending on who is on the team.
Key features
You get no template builder and no dashboard worth the name. Suppression lists, bounce logic, and reporting are yours to wire together out of SNS, Lambda, and CloudWatch. Fresh accounts sit in a sandbox limited to 200 daily sends until Amazon signs off on production access, and complaint and bounce ceilings are enforced by the platform from then on. Virtual Deliverability Manager layers on dashboards and optional reputation tracking.
Pricing
There is no recurring free allowance any more: new AWS accounts get up to $200 in Free Tier credits, usable on SES like any other service, and they expire 12 months after account creation. Add $24.95 for a dedicated IP, $0.12 per GB of data transfer, and a separate AWS support contract if you want phone or chat access.
The tradeoff: the engineering time to build around SES usually costs more in year one than three years of Lettr or Mailtrap.
5. Mailgun: best for pre-send address validation
Mailgun is the only provider here with address validation built into the platform rather than bolted on from somewhere else. Its validation API checks whether an address is deliverable before you send to it, so typos, disposable domains, and role accounts get caught at signup instead of at send time. On a list you did not collect yourself, that is the difference between a 2% bounce rate and a suspended account.
Key features
SDKs cover Python, PHP, Java, Ruby, Node.js, and Go. Domain-specific API keys let you scope credentials per sending domain, and the batch API takes up to 1,000 recipients per call. Mailgun's MCP server exposes 50+ tools for sending, domain management, and DNS troubleshooting.
Pricing
Foundation is $35 for 50,000 and Scale is $90 for 100,000 (this is the most expensive full-featured option here after Postmark). Free covers 100 emails a day. Dedicated IPs start on Foundation at $59 a month.
The tradeoff: log retention is one day on Free and Basic and five days on Foundation, reaching 30 days only on Scale (short enough that the evidence disappears mid-investigation).
FAQ
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Bottom line
Which SendGrid alternative wins depends on which SendGrid problem you are actually solving. On price with no loss of tooling, Lettr and Mailtrap both land at $30 for 100,000 emails: Lettr with the full toolkit and marketing in one account, Mailtrap with transactional and bulk mail kept on separate IP pools on every plan. Postmark is worth four times that if a slow password reset costs you support tickets. Amazon SES wins on cost at volume, provided you have engineers to spare. And if your bounce rate is the thing keeping you up, Mailgun's validation API is the specific fix.