Failed to send email: 504 Unknown mechanism <PLAIN> #241
Description
Since we found the GNOME keyring and dbus errors, my Gmail account worked perfectly.
I configured a custom account (from the Mailo service) with the correct server details.
Matcha allows me to see the emails in my inbox, but it doesn't allow me to send them.
When I try to send, I get the following error:
Failed to send email: 504 Unknown mechanism
The custom server is configured with the default ports: 993 for IMAP and 587 for unencrypted SMTP.
I tried configuring it with port 465 and SSL as a test, but it gets stuck in a loop without sending the email.