OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
Re: security hole -- anynomous user can send email from my postfix

From: Charles Marcus (CMarcusMedia-Brokers.com)
Date: Mon Apr 02 2007 - 08:34:10 CDT


>>> I have done smtpd_recipient_restrictions = reject_unlisted_sender
>>>
>>> and now I can't send mail even as a valid user. have I done anything
>>> wrong here ?
>>> please suggest.

>> Logs? postconf -n (to prove you made the changes)?
>
> here is postconf -n

Ok - but what about logs? When troubleshooting this kind of thing, you
should always provide the logs of an attempt to do whatever is failing -
this will usually tell you what is wrong, or at least point you in the
right direction.

--

Best regards,

Charles