Remote sender is authenticathing using correct username/password (I
suppose you use smtp auth).
So, it is enabled to send everywhere, not only to local addresses.
If it is someone who stole username/password, change password
imemdiately, and communicate new password to real customer.
Regards,
Tonino
Il 14/11/2011 13:28, Tony White ha scritto:
Hello all,
I am not understanding what is happening on my server.
A remote server is sending email using a clients email
address. Relaying is allowed as it is a valid email address
but it is not my server!
How does this work? Anyone any ideas please? Id there
a cure?
Example
2011-11-14 23:22:24.504944500 tcpserver: ok 26024
mail.ycs.com.au:111.223.234.146:25 :190.252.139.148::14472
2011-11-14 23:22:34.461779500 CHKUSER accepted sender: from
<[email protected]:[email protected]:> remote
<ycs.com.au:unknown:190.252.139.148> rcpt <> : sender accepted
2011-11-14 23:22:35.779762500 CHKUSER relaying rcpt: from
<[email protected]:[email protected]:> remote <ycs.com.au:unknown:190.
252.139.148> rcpt <[email protected]> : client allowed to relay
2011-11-14 23:22:35.779783500 policy_check: local [email protected] ->
remote [email protected] (AUTHENTICATED SENDER)
2011-11-14 23:22:35.779825500 policy_check: policy allows transmission
2011-11-14 23:22:35.779876500 spamdyke[26024]: ALLOWED from:
[email protected] to: [email protected] origin_ip: 190.252.139.148
origin_rdns: (unknown) auth: [email protected] encryption: (none)
thanks in advance...
Tony White
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If you need professional help with your setup, contact them today!
---------------------------------------------------------------------------------
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