I want to try Mailgun, so that’s great to hear! I’m going to setup the plugin and test it immediately. Only issue is that it’s taken over 24 hours now to verify my domain.
Looks like Sendgrid has a plugin too, so I’ll test that meanwhile.
To update my progress on this issue:
The temporary solution was that I had Slack integrated to GravityForms, so I just disable notifications and had the client use Slack for now– so that gave me some breathing room to get the bottom of the issue.
I spun up a completely new Trellis environment, installed my old theme, synced databases, and the error persisted. So I know it had nothing to do w/ Trellis or Bedrock itself.
I was still getting 504’s on the new staging server, so I changed my Trellis/group_vars/all/mail.yml to the default, reporivision & deployed, then the 504’s went away– although obviously email won’t work correctly on Trellis’s default mail.yml.
Perhaps something might have changed on my Sendgrid SMTP login? Or perhaps the port? I’m not sure what the issue is exactly, but once I’ll update my solution once I find it. Thanks @alwaysblank!
Update on fix:
For now, Sendgrid’s Wordpress Plugin is fixing the issue. From now on, I’ll probably just include this plugin in my default composer.json since it’s so simple to setup. It has a cool stats widget on the WP Dashboard as well.