[Email] I can't send email, but I can receive it

[IdeaDirect]

The SMTP is definitely spelled correctly. POP3 and SMTP are both mail.ideadirect.com
Authentication is turned on to use same as incoming.
Email works fine on port 25.

I was having another issue related to an IP listed by spamhaus causing bounced email. I thought maybe a different port 'might' route through a different IP (highly unlikely but worth trying). I'm also getting an email account with my ISP which might get me a new IP but I travel and didn't want to use the ISP authentication/smtp info.

Anyway, as I wrote this, the bad IP was cleared from spamhaus so it is not an issue anymore. It is handy though as a few of my clients have had their ISP block port 25.