Email infrastructure for SaaS teams
Most SaaS platforms need more than send-an-email. You need password resets, signup verifications, support inboxes, and privacy-preserving aliases — all on EU infrastructure with a standard GDPR DPA. Postscale handles all of it under one API key.
What we hear from teams in this space
The EU compliance tax
Every US-based email vendor triggers Standard Contractual Clauses + Transfer Impact Assessment. DPOs hate it, procurement slows deals. EU-only processing removes the friction.
Split vendor stack
One vendor for transactional, another for inbound parsing, a third for privacy addresses. Three DPAs, three bills, three webhook shapes to handle. Consolidation is cheaper and simpler.
Unpredictable scaling costs
Usage-priced vendors add add-on fees for inbound, validations, dedicated IPs. At 100k sends/month you're often paying 50% more than the headline tier.
How Postscale fits
Transactional email — password resets, receipts, notifications
REST API or SMTP relay. DKIM + DMARC configured in two CNAMEs. Real-time delivery webhooks. Works with any stack — Rails, Django, Go, Node, PHP, React Email.
Support inbox & email-driven workflows
Point an MX record; every inbound message arrives as a signed webhook with parsed headers, body, and attachments. Build ticketing, reply-to-open, auto-routing in hours not weeks.
Privacy-preserving signup flow (Shield)
Generate a masked address at signup time instead of asking for the user's real email. Reduces churn from privacy-conscious users, matches Apple's Hide My Email UX in your own product.
Deliverability visibility
DMARC reports parsed automatically. See which sending sources are authorized, which aren't, and track progress from p=none → quarantine → reject without breaking legitimate mail.
EU compliance by default
Postscale is operated by DNScale OÜ (Estonia, EU). All processing, storage, and delivery happens on EU infrastructure. Our standard Data Processing Agreement is GDPR-compliant out of the box — no separate legal negotiation, no Schrems II transfer assessment. For EU-based SaaS selling to EU customers, this removes hours of per-vendor compliance work every quarter.
Further reading
EU-hosted email APIs: what GDPR actually requires
The DPA, sub-processor, and CLOUD Act questions to ask every vendor.
Resend vs Postmark vs Mailgun vs Postscale
Honest side-by-side of the four transactional email APIs worth naming.
The EU-hosted SendGrid alternative
What changes (and what doesn't) when you switch from SendGrid.
See it in your stack
Free tier covers an evaluation. Five EU-hosted email APIs under one key.
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