Hi All,
We use Exchange 2010 SP2 as CAS+Hub Transport+Mailbox and Brightmail 10.6.3-2. The limit for inbound messages is 30MB on Brightmail and 20MB on Exchange.
When an external sender try to send a message to non-existing user (in our organizsation) he gets the NDR:
"The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk." - works correctly.
But when the same sender tries to send a message with size more then 20MB he won't get the NDR. The only delivery problem report I can see is in brightmail log:
"552 5.3.4 message size exceeds fixed maximum message size"
My questions are
"How to configure Brightmail to send NDR for 552 5.3.4?"
or
"How to redirect NDR fro Exchange to the original sender?"
Please assist.
Regards,