I recently changed my hosting provider and now I can’t send emails anymore through the new provider on port 587, even though I can send emails with the same settings using Thunderbird / Microsoft Mail. Using the “Test email settings” gives the error “Message could not be sent”.
Environment: Self-Hosted (Ubuntu Server 18.04.4 LTS)
Manager Version: 20.2.33
Manager will send emails on port 25, but that is not an ideal long-term scenario.
I’ve attached some screenshots of both the Manager Email Settings Page and the Thunderbird SMTP Server Settings.
Any solutions to this problem would be welcome.