[Mimedefang] md_check_against_smtp_server and md_graphdefang_log

[Tilman Schmidt]

Am 26.03.2013 um 04:35 schrieb kd6lvw at yahoo.com:

>  If it were to be limited to servers under one's control and enforced as such, the routine would have to obtain the recipient's MX-RRset internally and test all higher priority MTAs; thus it would not need the remote host address parameter.  It would determine which host in the MX-RRset it is running on based on the macro variables passed in via the milter interface.

That would exclude a lot of useful and legitimate applications. Hint: Not every mail server has an MX RR pointing to it.