I have a weird problem... Messages are piling up in my "Messages Queued for Deferred Delivery" folder. I'm using Server 2003 and Exchange 2003. Most of the messages appear to be to non-existent users in two domains that I'm hosting on the server. They're coming from all over the map so I can't pinpoint any one domain or computer that's sending them. The other weird thing is that in my queue list I'm getting folders named "Default Connector - abc.com (SMTP Connector)" where abc.com are the domains to which the mail is being sent. I set the recipient filter to filter out mail for non-existent users, but it doesn't seem to be working in this case. I've beenbeatingon this for about a week now so any help would be greatly appreciated. Thanks, BB
Hi, Look for open relay and smtp auth attack. http://www.msexchange.org/tutorials/MF005.html http://www.vamsoft.com/authattack.asp Leif "Bob Becker" skrev i meddelelsen news:f5KdnaWm9afvpbHVnZ2dnUVZ_o3inZ2d@suscom-maine.net... > I have a weird problem... > Messages are piling up in my "Messages Queued for Deferred Delivery" > folder. > I'm using Server 2003 and Exchange 2003. > Most of the messages appear to be to non-existent users in two domains > that I'm hosting on the server. They're coming from all over the map so > I can't pinpoint any one domain or computer that's sending them. > The other weird thing is that in my queue list I'm getting folders named > "Default Connector - abc.com (SMTP Connector)" > where abc.com are the domains to which the mail is being sent. > I set the recipient filter to filter out mail for non-existent users, but > it doesn't seem > to be working in this case. > I've beenbeatingon this for about a week now so any help would > be greatly appreciated. > Thanks, > BB > >
