[CentOS] SPAM on the List

[Les Mikesell]

On 7/17/11 4:48 PM, Always Learning wrote:
>
> If the 'greeting name' (HELO/EHLO) does not resolve to the IP address
> used by the sending server, then the mail is not accepted.

That's ummm, kind of random. There's no reason to expect this.

>> Someone who does not want to receive mail from legitimate senders can
>> just switch off his MTA ;-)
>
> Legitimate senders should not use fake, false, misleading credentials.

There is no requirement for the greeting name to match any IP, and isn't likely 
to work for multi-homed and/or clustered machines.

-- 
   Les Mikesell
     lesmikesell at gmail.com