Veja os jobs falhos no Sidekiq. (MailGun) falhando ao enviar e-mails

[Moin]

Which port do you currently use?

@pfaffman

The issue with port 587 being blocked is a digital ocean issue. I’ve had several clients who just stopped being able to send mail because digital ocean started blocking the port without warning. It’s a trivial fix to switch to port 2525, though.