It depends entirely on your MTA/MDA setup. SpamAssassin scans everything that
gets thrown on it. You have to tell us more or go ask the appropriate mailing
list.
heh... I knew it won't be easy :) My MTA is qmail-1.05 on FreeBSD 4.8. I
run clamav + qmail-scanner. These my qmail conf files which I think
could be helpful:
locals:
server.domain.pl
mail.domain.pl
domain.pl
rcpthosts:
localhost
server.domain.pl
domain.pl
domain1.pl
domain2.pl
If it is anything else I could listed to you please let me know. Thanks
in advance! Artur.