NDRs from mail filtering service don't show in Exchange 2007
Posted on 2011-10-26
I have an issue with a customer. They have Exchange 2007 as part of SBS2008. We use Webroot mail filtering to do our antispam etc - it's an SMTP service like Mimecast/Postini etc.
I am not getting any NDRs come back.
So I send a mail to email@example.com and can see it in my Exchange message tracking log and can see it hit webroot. I can also see an NDR being sent AND ACCEPTED by my Exchange server, but nothing in the Exchange Server mail tracking log.
I have "Accept NDRs" and "delivery reports" enabled on the Edge transport.
Anyone any ideas as I'm a bit stumped !