Our Exchange infrastructure is as follows:
Exchange 2003 - Backend server to Front end server which then goes to our Sendmail SMTP servers, then there's the firewall and after that we use Postini to filter our email.
On monday morning one of our users sent an email to approximately 20 recipients. The email was 7mb in size. Since monday that email has continued to send to all of the 20 recipients, day and night. The recipients are as you can expect not very happy and we need this email to stop sending ASAP !!!!!
When i search in exchange, system manager, Message tracking center i can see the email being sent only once from our users account.
The exchange queues are empty.
When i look in the Postini logs, at email sent from the users account, i can see all of the resent emails going out.
Status in these logs for delivery of each resent email is ' Delivered successfully ' , except for one recipient who's status is always ' Reinjected '
I believe that because of this one recipient with the status of reinjected, the email is being resent to all recipients.
What do you think ?
How can i stop this email resending ?
I'm getting desperate, all options will be considered.