Hi all. OK here's my issue. I am running Exchange 2003 SP2. I use intelligent message filtering, recipient filtering, and I run Sunbelt Messaging Ninja (anti-spam product). Spam which is directed at user accounts is successfully blocked 99 percent of the time. We do have a few mail enabled public folders though, and for whatever reason spam gets into these folders like crazy.
Now here's the rub...our spam software never even inspects these messages because the messages are directed at email addresses that do not exist in my organization. So if my domain name is abc.com, these emails will be addressed to joeblow@abc.com, and joeblow is not a valid smtp address in my organization. How or why these things get through is beyond me, since I am using recipient filtering and these emails should be rejected immediately. A phone call to Sunbelt tech support proved fruitless, because they say I first have to figure out why these emails are getting through to my public folders in the first place.
Does anybody have a clue how I can investigate this further? I have 4 public folders which are mail enabled, and they have addresses like accounting@abc.com, sales@abc.com, etc. I've double checked these folders and they all have one valid smtp address, with no other bogus addresses associated with them. Any help would be much appreciated. Thanks!
Now here's the rub...our spam software never even inspects these messages because the messages are directed at email addresses that do not exist in my organization. So if my domain name is abc.com, these emails will be addressed to joeblow@abc.com, and joeblow is not a valid smtp address in my organization. How or why these things get through is beyond me, since I am using recipient filtering and these emails should be rejected immediately. A phone call to Sunbelt tech support proved fruitless, because they say I first have to figure out why these emails are getting through to my public folders in the first place.
Does anybody have a clue how I can investigate this further? I have 4 public folders which are mail enabled, and they have addresses like accounting@abc.com, sales@abc.com, etc. I've double checked these folders and they all have one valid smtp address, with no other bogus addresses associated with them. Any help would be much appreciated. Thanks!