You cannot send an email from Postmark until you verify you own the domain (e.g., you@yourcompany.com ).
If you grab an envelope from your mailbox today, here is what you are looking for: postmark
Why Your Transactional Email Deserves the Postmark Treatment You cannot send an email from Postmark until
Email is simple in concept but fiendishly complex in practice. For product teams, marketers, and developers building user-facing systems, reliable email delivery—deliverability—is often the difference between a smooth user experience and a support headache. Postmark is one of the email delivery services that focuses squarely on transactional email and deliverability; this post examines what makes a deliverability-first service valuable and how teams can use Postmark effectively. Postmark is one of the email delivery services
Do your users a favor. Move your receipts and password resets to Postmark.
| Service | Best For | Transactional Focus | |---------|----------|----------------------| | | Transactional (password resets, receipts) | ✅ High | | SendGrid | Marketing + transactional | ⚠️ Mixed (marketing-first) | | Amazon SES | High-volume, low-cost | ✅ Yes, but requires setup | | Mailgun | Developers needing flexible APIs | ⚠️ Moderate | | Mailchimp | Marketing newsletters | ❌ No |
: USPS Postmark Rules Change: What You Need to Know by AARP explains how these shifts affect tax filings, Medicare documents, and mail-in ballots.