SendGrid alternative
A modern SendGrid alternative on EU infrastructure
Looking for a SendGrid alternative? PostStack is an EU-hosted email API with a clean REST surface, no add-on tax, and paid plans from €5 — instead of SendGrid's $19.95 entry point and modular pricing.
Why teams pick PostStack over SendGrid
Predictable pricing, no add-ons
SendGrid bundles deliverability features behind tiers and add-on SKUs. PostStack ships dedicated IPs, broadcasts, mailboxes, and DMARC reports inside one plan. What you see on /pricing is what you pay.
A modern API, not v3
SendGrid's v3 API is functional but verbose, with inconsistent casing and legacy edges. PostStack's API is typed end-to-end, snake_case-free, and built for 2026 developer ergonomics.
EU data residency by default
SendGrid is a Twilio company hosted in the US. PostStack is a Danish company hosting in Germany and Finland — a real answer to "where is our data?" for European customers.
Mailboxes alongside the API
SendGrid is send-only. PostStack lets you create real IMAP/POP3 mailboxes on any domain you own — useful for the "send + receive" half of email that SendGrid leaves unsolved.
Pricing at a glance
| Volume | SendGrid | PostStack |
|---|---|---|
| 3,000 emails / month | Free (100/day cap) | Free (no day cap) |
| 10,000 emails / month | $19.95/mo | €5/mo |
| 50,000 emails / month | $19.95/mo | €15/mo |
| 100,000 emails / month | $89.95/mo | €65/mo |
Public list prices. PostStack overages bill at €0.65 per 1,000 emails. See /pricing for the full breakdown.
Stay on SendGrid if…
Stay on SendGrid if you need their established US deliverability brand for legacy enterprise contracts, or already integrate the SendGrid Marketing Campaigns suite.
Switch to PostStack if…
Switch to PostStack if you want a clean REST API, simpler pricing, EU data residency, or are tired of paying for add-ons you do not use.
Frequently asked questions
Is PostStack as reliable as SendGrid for transactional sending?
PostStack runs on Postfix on dedicated EU infrastructure with active reputation monitoring, RFC 8058 one-click unsubscribe, DMARC aggregate reporting, and Rspamd pre-flight scoring. Deliverability is on par with SendGrid for the EU+UK send paths.
How is PostStack pricing different from SendGrid?
SendGrid charges $19.95/mo for the lowest paid tier, with deliverability features gated behind add-ons. PostStack charges €5/mo for the same volume and includes dedicated IP eligibility, broadcasts, mailboxes, and DMARC reports inside one plan.
Can I migrate from SendGrid in a day?
Yes. The migration guide at /migrate/sendgrid walks through swapping `@sendgrid/mail` for `@poststack/sdk`. Most teams cut over in under an hour.