When I try sending e-mails to certain domains I get this error: Helo command rejected: need fully-qualified hostname (in reply to RCPT TO command) I have been looking around but can't seem to find a solution, I got my ISP to setup reverse DNS and everything as far as I know is setup correctly, any help please? I am running ISPConfig 2.2.15 on Debian 4.0 I am going to keep looking around but I need this fixed ASAP since a majority of my clients I have to e-mail I can't send e-mails to them!
Well I found the problem - had localhost for hostname in /etc/postfix/mail.cf which fixed that problem... now I just have to get hotmail to accept e-mails from my domain!
