I switched my email setup in Outlook from IMAP to POP3 so I could delete messages from my hosting email account (the mailbox was getting bloated)
I have set up the account as POP3. I can receive emails fine. The test email sends OK to the account when I test the settings during setup. But when I save the setting and try to send from Outlook, it won't send emails.
My settings are
POP3 incoming: mail.mydomain.com
SMTP outgoing: mail.mydomain.com
Outgoing SMTP requires authentication is checked
POP3 port: 110
SMTP port: 2525