-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andy Green wrote: > Craig McLean wrote: > >> Andy Pieters wrote: >> >>>> Hi List >>>> >>>> We are getting quite some spam from japan and spamassassin doesn't consider it >>>> as spam. >> >> [snip] >> This probably belongs on spamassassin-users. See >> http://wiki.apache.org/spamassassin/MailingLists for more info on >> subscriptions and searchable archives. >> >> They are a very helpful bunch, and will probably be able to point you at >> a SARE rule which does the trick if the stock rules aren't firing. > > Perhaps in this case a better solution is that his MTA should be > configured to reject any mail coming in with a HELO name that is not > true (ie, your mailserver external hostname or IP). [mini-snip] You might well be right. On high-load systems a caveat, however, is that if you do this with RDNS queries and it'll lead to a potential DoS. I haven't tested whether my mailserver will allow me to HELO with the mailservers hostname but a phony IP. I suspect this will be covered (assuming sendmail) by confPRIVACY_FLAGS or local-host-names. I'll have a play and see if I can get a reaction from my MTA. C. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFDd4BaMDDagS2VwJ4RAlRuAKC+vMGDeCG/VxSkMwKXNBnP4ws4+ACgpJOk 2joX6hbtxENRsivHZPSZh9c= =7Ltc -----END PGP SIGNATURE-----
