May 30 2018 08:17 AM
Hi all,
I was wondering if you could help me below Scenario.
External user sends email to 0365 user, that mailboxes doesn’t exist anymore. NDR will be sent to the external sender.
So that NDR will have the from address in the header as null address <>.
I want to set up a transport rule which would be like follows;
If the sender from address is <> and inside organisation and message is addressed to outside organisation change the from address to admin@example.com or postmaster@example.com or any given address.
My aim is to stop NDR using null address.
Regards,
Kamal
May 30 2018 09:50 AM
It will not be null, it will be the default value postmaster@domain.com. You can change it by modifying the value specified under ExternalPostmasterAddress:
Set-TransportConfig -ExternalPostmasterAddress blabla@domain.com
Keep in mind that the format used in the NDR message will also depend on the sender's email system and in some cases the address might be replaced.
May 31 2018 07:08 AM
Thanks Vasil.
Does this apply to OOO messages as well?
Regards
Kamal
May 31 2018 10:23 AM
Not sure what you mean by that. OOO messages are generated with the address of the user?
Jun 01 2018 12:10 AM
Within the header, the envelope address is a null address at times