Pop3 account setup but I can't send emails. I can receive without problems.

I have setup my POP3 account and can receive emails without any issues. However when I try to send emails I get a SMTP error message come up.

Have you ticked my server require authentication under the SMTP settings for the account.

Yep, still will not send.

Resolved the issue myself, our server was blocking the default SMTP port. Changed it and now everything is working fine.

Marked as solved, thank you for this information.