Hey there, I have an exchange server 2010. Recently the queue has been filling up with crap headed out from our exchange server. Looks like from the logs, that an IP in pakistan was sending some of the e-mails through us.
How to I stop this from happening.
I have 2 receive connectors, one set up for port 587 for a backup utility to e-mail reports through and the other is the default port 25. I tried to uncheck ANONYMOUS from the permissions on the default, but then e-mail will not come in.
Thank you for any assistance you can provide.