Exchange

Fixing Invalid Mail Server Hostname

When running DNSReport on a domain you might come across the below warning. To fix this login to the mail server running Exchange, expand Administrative Group – Servers – (server name) – Protocols – SMTP – Default SMTP Virtual Server Properties – Advanced Replace the Fully-qualified domain name with the correct entry.

Exchange 2007 or 2010 stopping NDR from postmaster@ filling queues from backscatter spam

If you find your queues are getting full of NDRs from the postmaster to spammers you can turn off allow non-deliveyr reports in the Hub transport\remote domains\default\properties This however will stop NDRs from being generated that are valid. You may therefore want to configure anti spam filtering If running a single exchange server with hub.