I have a similar problem in Exchange 5.5 SP4 where messages build up in the Outgoing queue that appear to be spam. There is no originator and what appears to be stopping them is an error in host name resolution.
I have configured the Routing Restrictions long ago that only allow those who...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.