On 04/06/2012 02:54 PM, Reindl Harald wrote:
if you are runnaing an MX you MUST accept incoming port 25
from the internet or how do you imagine you receive new mails
from the world?
If you're only running an SMTP server, that's not an issue. If, and
only if you're providing POP3 or IMAP, I'd agree with you. In my case
if I were to run a server, I'd only be using it for SMTP, as my hosting
company does the rest.