HiI have exchange 2007 with mailbox on cluster and two servers with hub & cas some of my users getting mails from themself like the mails subject is "from Admin" and in the To: & Form: fields has their own email address.Mean they are receiving mail from them self with subject "from Admin" What is is this, any body has idea Nagorimanagori

Have you take a look at the message header to determine if the source of this message is internal or external? It's easy to spoof an email address and we have that issue when our users whitelist their own email address in our spam system so it let's spoofed address come to them.Sr. Exchange Engineer - Constellation Energy

Hi,First, as Aaron said, we need to confirm whether the email is frominternal or externalinorder tocheck the spoofing email.Then, check whetherany useris the member ofthe Administrators group, the Domain Admins group or the Enterprise Admins group who was sending the email to the users?By default,the Administrators group, the Domain Admins group, the Enterprise Admins group, and the Account Operators group have Send As permissions for all users.You can obtain this information from the below link:http://technet.microsoft.com/en-us/library/bb310792.aspxPleasescroll down to:Q: Why can domain administrators spoof mailbox-enabled user accounts in their domain?ThanksAllen