Track Postmark API updates, deliverability changes, and SDK releases
Monitor Postmark API changes before your transactional emails stop delivering
APIDrift scrapes Postmark product updates at postmarkapp.com daily, tracking API endpoint changes, template engine modifications, and deliverability rule updates. Postmark powers mission-critical transactional emails like password resets, order confirmations, and verification codes. Changes such as new required parameters on the /email/batch endpoint or template syntax modifications can silently break your email pipeline, making proactive monitoring essential.
No credit card. Postmark is pre-configured. Get your first digest this week.
2
Sources tracked
HTML scraping
Source type
minimal
Content depth
Postmark API changes can silently break your email delivery pipeline
Transactional emails are mission-critical — password resets, order confirmations, and verification codes must arrive. Postmark's API endpoint changes, template syntax updates, and sending rule modifications can disrupt delivery if you're not watching for them.
“Postmark updated their template syntax and our dynamic variables stopped rendering. Password reset emails went out with literal {{resetLink}} text for six hours before we noticed.”
Manual monitoring vs APIDrift
Without APIDrift
Check frequency
When you remember
Change classification
Read every line yourself
Alert timing
Days or weeks late
Team visibility
Tribal knowledge
Setup time
Bookmarks, RSS, custom scripts
With APIDrift
Check frequency
Every 6 hours, automatically
Change classification
AI-powered severity & type tagging
Alert timing
Same-day smart digests
Team visibility
Shared watchlist & history
Setup time
One click, 30 seconds
What APIDrift tracks for Postmark
API endpoint changes
REST API modifications, new required fields, and response format changes
Template engine updates
Template syntax changes, variable handling modifications, and layout system updates
How it works
Add Postmark to your watchlist
One click. No config needed.
We scrape & diff every 6 hours
AI classifies each change by type and severity.
Get smart digests
Email, Slack, or webhook — your choice.
Example: What an alert looks like
API: /email/batch endpoint now requires MessageStream parameter
All batch email requests must include a MessageStream parameter. Requests without it will receive a 422 error. Set MessageStream to 'outbound' for transactional emails.
New: Inbound email webhook now includes stripped-text field
Inbound email webhooks now include a StrippedTextReply field containing the reply text without quoted content.
This is a static preview — not live data.
Frequently asked questions
Start monitoring Postmark today
Stop checking changelogs manually.
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