Product Updates
Set up domain email with Postscale and DNScale
Choose application email or personal forwarding, then let DNScale configure the DNS records after your approval. Here is how the complete setup works.
Read articleFrom the Postscale team
Postscale Blog
Product updates, practical email guides, and insights for building reliable email infrastructure.
Featured story
Product Updates
New Postscale features, SDKs, and workflows for your email infrastructure.
Product Updates
Set up domain email with Postscale and DNScale
Choose application email or personal forwarding, then let DNScale configure the DNS records after your approval. Here is how the complete setup works.
Read articleProduct Updates
Introducing the Postscale CLI
Meet Postscale CLI 1.0.0. Configure domains, send test email, and inspect email and webhook delivery from your terminal.
Read articleProduct Updates
Activity is now an operations inbox for email and webhooks
The Activity page now separates operational delivery state from audit history, making webhook failures, DNS issues, bounces, and retryable actions visible in one place.
Read articleProduct Updates
Team accounts are now available in Postscale
Invite teammates, assign roles, and limit member access to specific domains without sharing an owner login.
Read articleProduct Updates
Introducing the Postscale Ruby SDK
Send email and verify Postscale webhooks from Ruby and Rails with the official RubyGems package.
Read articleProduct Updates
Introducing the Postscale Python SDK
Send email and verify Postscale webhooks from Python with the official PyPI package.
Read articleProduct Updates
Introducing the Postscale Node.js SDK
Send email and verify Postscale webhooks from Node.js and TypeScript with the official npm package.
Read articleProduct Updates
Introducing Postscale
Today we're launching Postscale - complete email infrastructure for developers. Send, receive, and protect.
Read articleEmail Guides & Insights
Practical advice on deliverability, authentication, forwarding, and privacy.
Email Guides & Insights
Gmail ‘Send as’ ends for third-party addresses in January 2027: options for your domain
Understand Gmail's January 2027 Send as change, then compare domain forwarding with an external client, a hosted mailbox and Google-hosted identities.
Read articleEmail Guides & Insights
Should you use a no-reply email address?
A practical guide to noreply and no-reply email addresses: when they are fine, when they cause support and deliverability problems, and how to route replies properly.
Read articleEmail Guides & Insights
Import suppression lists before migrating email providers
Why bounces, complaints, unsubscribes, and manual blocks should move before your first send through a new email provider.
Read articleEmail Guides & Insights
How delayed email bounces work: Return-Path, DSNs, and webhook correlation
A practical guide to delayed email bounces, why the SMTP envelope matters, how Return-Path domains route DSNs, and how Postscale turns them into bounce webhooks.
Read articleEmail Guides & Insights
Migrating from Mailgun to an EU-hosted email provider: a practical guide
What actually changes when you move transactional sending from Mailgun to an EU-hosted provider: DNS, API calls, events, inbound, and the migration-week checklist.
Read articleEmail Guides & Insights
Email warming explained: IP warming vs domain warming (and when you need which)
Warming an IP versus warming a domain are different problems with different timelines. Here's what each is, when you need it, and how to do it without burning your sender reputation.
Read articleEmail Guides & Insights
SRS and email forwarding: why forwarded mail bounces (and how to diagnose it)
Separate SPF, DMARC alignment, SRS bounce handling and normal replies when diagnosing forwarded email.
Read articleEmail Guides & Insights
SPF, DKIM, and DMARC: the 2026 setup guide
A concrete 2026 setup for email authentication: what Gmail and Yahoo now require, what's changed from 2024, and the DNS records you actually need.
Read articleEmail Guides & Insights
XRechnung API: A developer's guide to Germany's e-invoicing mandate
What XRechnung is, what the German B2B e-invoicing mandate requires, and how to send and receive EN 16931-compliant invoices through a REST API.
Read articleEmail Guides & Insights
The Complete Guide to Email Deliverability in 2026
Everything you need to know about getting your emails into the inbox, not the spam folder.
Read articleEmail Guides & Insights
Why Masked Emails Are the Future of Online Privacy
How masked email addresses protect user privacy and why every platform should offer them.
Read articleTutorials & How-To
Hands-on walkthroughs for building with email APIs, webhooks, and DMARC reports.
Tutorials & How-To
Parsing DMARC aggregate XML: a tutorial with Node, Python, and Go
Walk through parsing DMARC aggregate (RUA) XML reports in three languages. Schema handling, gzip/zip unpacking, and aggregating records across multiple reports.
Read articleTutorials & How-To
How to build a support inbox with an inbound email API
Step-by-step guide to turning a customer-facing inbox into structured webhooks. Parse MIME, handle attachments, detect replies, and route by subject pattern.
Read articleTutorials & How-To
How to parse DMARC aggregate reports (RUA) programmatically
DMARC aggregate reports arrive as compressed XML from dozens of receivers. Here's how to parse, aggregate, and act on them without opening a single ZIP by hand.
Read articleComparisons
Understand the tradeoffs when choosing an email provider for your application.
Comparisons
Resend vs Postmark vs Mailgun vs Postscale: a 2026 comparison
Side-by-side look at four transactional email APIs: pricing, features, EU-compliance posture, and when to pick each.
Read articleComparisons
EU-hosted email APIs: what GDPR actually requires and who delivers
A practical look at EU data residency, GDPR processor questions, and what to ask before choosing a transactional email API.
Read article