I've set up an email account in Windows Mail (Vista) for my new domain, "mydomain.net."
I can send an email to myself (from firstname.lastname@example.org to email@example.com) and that works OK. I can send and receive.
I can send an email from outside the domain to myself (firstname.lastname@example.org to email@example.com) and that works OK.
But when I try to reply to it from firstname.lastname@example.org, I get an error:
The connection to the server has failed. Subject 'Re: The real Test', Account: 'mail.mydomain.net', Server: 'mail.mydomain.net', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 10013, Error Number: 0x800CCC0E
Suggestions? Something to do with login security?