On 04/07/2012 12:44 AM, Joe Zeff wrote:
On 04/06/2012 09:31 AM, Ed Greshko wrote:
So, it would seem that this system is going to be accepting incoming mails from the internet for at least one domain...... In that case it would be bad advice to simply close port 25.
Not if he uses smtpauth on port 587. Granted, telling him only to accept mail from 127.0.0.0 was a tad excessive, but I was in the mood for a bit of overkill. <snicker>
You seem to have 0 knowledge of how server to server email works. Please do some work to understand what actually transpires before you advise people.