Thanks Tonino,
  I have done it now and am waiting to see if it stops!
Thank you for responding so quickly!


On 14/11/2011 23:45, Tonix (Antonio Nati) wrote:
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 <cli...@ycs.com.au:cli...@ycs.com.au:> remote <ycs.com.au:unknown:190.252.139.148> rcpt <> : sender accepted 2011-11-14 23:22:35.779762500 CHKUSER relaying rcpt: from <cli...@ycs.com.au:cli...@ycs.com.au:> remote <ycs.com.au:unknown:190. 252.139.148> rcpt <uligr...@cintek.com> : client allowed to relay
2011-11-14 23:22:35.779783500 policy_check: local cli...@ycs.com.au -> remote 
uligr...@cintek.com (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: cli...@ycs.com.au to: uligr...@cintek.com origin_ip: 190.252.139.148 origin_rdns: (unknown) auth: cli...@ycs.com.au encryption: (none)



thanks in advance...

Tony White

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--
best wishes
  Tony White

Yea Computing Services
http://www.ycs.com.au
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Yea
Victoria
Australia 3717

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(www.vickersconsulting.com)
   Vickers Consulting Group offers Qmailtoaster support and installations.
     If you need professional help with your setup, contact them today!
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