Gurunandan R. Bhat a écrit :
> On Fri, 2009-05-08 at 08:51 -0300, Reinaldo de Carvalho wrote:
>> On Fri, May 8, 2009 at 4:33 AM, Gurunandan R. Bhat <g...@dygnos.com
>> <mailto:g...@dygnos.com>> wrote:
>> > Hi,
>> >
>> > I have Postfix configured with virtual hosts and mailboxes.
>> > I would like to configure Postfix so that it sends a per-virtual-domain
>> > hostname as smtp_helo_name when it delivers to other smtp servers.
>> > Is this possible? Or desirable?
>> >
>>
>> This is not necessary. If any domain send spam the IP or network will
>> be blocked and not servername.
>>
>> What problem you are trying to solve?
>>
>
> Got it. I was just trying to minimize any possibility of being blocked
> or listed. I have ensured that
> a DNS lookup on my "smtp_helo_name" resolves to my IP. From your
> response I understand that
> I dont need to do anything more than that (at least on the HELO name
> front).
>
if you are talking about the server you are posting from, then I suggest
changing the helo name to remove the "cpanel" part. cpanel often denotes
an incomplete/incorrect installation. prefer "neutral" names or smtp
related ones ("smtp-out.example.com" for example). mail.dygnos.com is ok.
You should also ask for the reverse dns to be fixed:
$ host 64.246.28.125
125.28.246.64.in-addr.arpa domain name pointer kuruption.net.
$ host kuruption.net
kuruption.net has address 64.235.254.226
so rdns=unknown (64.235.254.226 != 64.246.28.125).
