[CentOS] help from community - Solved !!

Fri Apr 13 08:31:28 UTC 2012
Prabhpal S. Mavi <prabhpal at digital-infotech.net>

Dear All,

I did promise to come back and update you after the problem resolved, but
before that i am grateful and personally thanking to everyone for their
input, efforts & energy.

Dear Markus Falb,

i apologies for my statement yesterday, i actually missed the part of your
email, undoubtedly the information you sent was very much valuable and
helped to resolve the cause. i do not hesitate to accept that i did not
know about call back function before your email.

Again special Thanks to Reindl Harald & Markus Falb, they made me to
understand what i need to do in order to resolve the cause.


1.) As you all know, that server where i was sending the message to was
configured for address verification & having incorrect PTR records.
2.) When it was coming back for address verification, my server was not
accepting connection.
3.) Because my server was configured for "reject_invalid_helo_hostname"

i have to disable following in main.cf to deliver the mails to that server.


Thanks / Regards

> Dear Markus Falb
> Thanks for your response, it is grate information. it is true i missed the
> part of your mails.
> Thanks / Regards
>> On 12.4.2012 14:16, Prabhpal S. Mavi wrote:
>> ...
>>> i know these commands but if you will carefully look into logs, you
>>> will
>>> notice that my server is sending mail not receiving. therefor it has
>>> nothing to do with their PTR weather it is correct or in correct. that
>>> is
>>> according to the logic.
>> ...
>> If the receiving server is doing callback than the logic is reversed, so
>> no, at that point your server turns into the receiver.
>> please read my *whole* message again, not only the part with the
>> commands. Have a look at the links I provided.
>> --
>> Kind Regards, Markus Falb
>> Resident do not top post guerilla
>> http://centos.org/modules/tinycontent/index.php?id=16
>> (The guidelines part)
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> http://lists.centos.org/mailman/listinfo/centos
> Thanks / Regards
> Prabhpal S. Mavi

Thanks / Regards
Prabhpal S. Mavi