At the moment we have a rule that limits SMTP traffic through TCP port 25. If I do a test email to a @hotmail.com address the email doesn't arrive, nor are there any bouce-back errors. If I send from hotmail to our domain, then reply to that email, that works fine.
Is there some kind of SMTP filter option that I can check/change to allow hotmail addresses out?
Thanks.
Woo.