On Sun, 9 Mar 2008, Tuc at T-B-O-H.NET wrote:
But it still remains, I'm looking to find what people think is the best way on an MX host to do the rejecting at SMTP time.
I'm coming to this conversation kind of late, so I apologize if I've missed something important earlier in the thread, but it sounds like what you want is a call-ahead milter (an example is at http://www.snertsoft.com/sendmail/milter-ahead/). Call-ahead milters allow MXs to contact the ultimate destination server, determine whether an address is valid at the end of the line and then take various actions, including rejection. -- Public key #7BBC68D9 at | Shane Williams http://pgp.mit.edu/ | System Admin - UT iSchool =----------------------------------+------------------------------- All syllogisms contain three lines | [EMAIL PROTECTED] Therefore this is not a syllogism | www.ischool.utexas.edu/~shanew