Receipt double mail

Hi

recently one of my mail box i am receiving double mail at same time. not for every mail, some mail are coming double

i have checked there is no rule fix anywhere.

can any one help in this regard

samad

Subject: receipt double mail

Try and disable the Server AV product and send the mail again as it has been know in the past that a slow performing AV product that takes the mail out of the Router to scan can cause duplicate mail.

or

Exhaustive lookup causing Duplicate mail

http://www-01.ibm.com/support/docview.wss?rs=463&context=SSKTMJ&context=SSPQ69&context=SSKTWP&context=SSRNU3&context=SSRNUY&q1=Duplicate+mail&uid=swg21225032&loc=en_US&cs=utf-8&lang=en

or

Check that you are not sending to a group that is present in your local Address book and that of the server… this has been know to cause issues in the past.