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I’ve used sendgrid for a while but had issues with deliverability. Then I moved to postmarkapp [1] and have not had any issues so far. 1 - https://postmarkapp.

by usaphp 8y ago

I’ve used sendgrid for a while but had issues with deliverability. Then I moved to postmarkapp [1] and have not had any issues so far. 1 - https://postmarkapp.com https://postmarkapp.com

tappleby 8y ago
+1 for postmark. Had deliverability issues with mailgun which were resolved once switching.
- kevinyun 8y ago
  is deliverability purely based on the email server, or is it a combination between your domain/etc? I always wondered if it was YMMV for everyone saying different things about the different EMS out there (SendGrid, Mailgun, etc)
  - jtmcmc 8y ago
    deliverability is actually incredibly complicated. Every mailbox provider (gmail, yahoo, hotmail/office365, comcast, etc... being the main ones) has their own algorithm for determining what is or isn't spam and includes things from user interaction to IP sending reputation to domain reputation to various types of authentication techniques (dmarc, dkim, spf, etc...)
quintin 8y ago
But postmark is only transactional. Not mass mailing.
- skrebbel 8y ago
  That might be why their deliverability is better :-)
- samwillis 8y ago
  That’s the point, it helps keep the reputation of their servers high and ensures fast delivery of transactional email.
degenerate 8y ago
Same exact boat, circa mid-2017. Was seeing lots of email go to spam on SendGrid, asked their support about it, and they suggested I purchase a monthly static IP. I moved to Postmark to save money and their deliverability ended up being WAY higher, due to the transaction-email-only policy.