P 
Postmark
Transactional email known for fast, reliable inbox placement.
NOT REALLY
why this verdict
Keep paying — OpenAI has not replaced it
OpenAI's version overlaps, but does not finish the email job, so this one still earns its $15/mo.
- A named launch, not a vibe named, unlinked
- AI coding assistants commoditised the integration, not the delivery. OpenAI, March 1, 2025 — no announcement link recorded yet.
- How much of the job it covers not the job editorial call
- Parts of it. The job still needs the tool to get finished.
- Is there a free way to do it? yes
- 2 of 2 listed replacements have a usable free tier: Resend and SendGrid.
- What the call is worth $180/yr
- $15/mo at the entry paid tier — $180 a year per seat.
Reason composed from the fields above missing: announcement linked recorded: free replacement listed recorded: two or more escape hatches
- Threatened by
- OpenAI
- Since
- March 1, 2025
- List price
- $15/mo
- Per year
- $180
The backstory
Postmark sells one thing: your password reset arrives in seconds, in the inbox. That is an operational reputation built over a decade with strictly separated transactional and broadcast streams. No amount of model capability shortens that.
Escape hatches
R 
Resend Newer DX, free tier.
resend.com open_in_new S 
SendGrid Cheaper at very high volume.
sendgrid.com open_in_new2 of 2 replacements have a usable free tier.