On Fri, Dec 11, 2009 at 04:16:40PM +0100, Udo Rader wrote:
> Umar Draz wrote:
>
>> I have postfix server with SMTP authentication.
>> My client's are using MS outlook for sending/receiving emails.
>> my domain name is = foo.com
>> but i am facing a very strange problem. If someone change his/her identity
>> like ([email protected]) to [email protected]. Then my mail server send his/her
>> email as [email protected] anywhere.
>> Would you please help how i can stop this. I want user only sent outgoing
>> email using my domain name.
>
> http://www.postfix.org/postconf.5.html#reject_unknown_sender_domain
No, because "yahoo.com", for example, is not "uknown". Since the OP
uses SASL auth, he could try to make headway with:
http://www.postfix.org/postconf.5.html#reject_sender_login_mismatch
this can break use-cases where the authenticated client is an MTA,
forwarding email for multiple users or another domain.
--
Viktor.
Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.
To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:[email protected]?body=unsubscribe%20postfix-users>
If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.
