
When using one of the secured services such as SMTPS / IMAPS / POP3S, ensure that SSL authentication (password-based) is selected. If you are unable to change the SMTP port, use the SMTP server of your local Internet service provider.

Mobile customers with a laptop and most home users should use port 587 for outgoing mail (SMTP).When configuring the outgoing mailserver, ensure to activate the SMTP Authentication-option.To circumvent this, we've enabled email submission on TCP port 587.

