Mastodon Admin: Troubleshoot Email Delivery

If you are experiencing issues with email delivery for new registration confirmations or other notification emails, here are some things that might help:

  1. Review Logs with...

    > sudo journalctl -u mastodon-sidekiq | grep -i smtp

  2. Try sending an email using your mastodon settings on SSMTP (

  3. Reach out to your hosting provider and ask whether they are blocking SMTP by default (to prevent email spam)

  4. Search Mastodon Admin forum at