On Wed, 5 Aug 2009, Luis Daniel Lucio Quiroz wrote: > Hi SAs, > > Well, as far as i am receiving email from my domain to my domain. I dont want > to block it because there are about 10% of email that is okay. I'd like to > know if there is a plug or a rule for SA to give more grade if email comes > from other ip than MX. > > TIA > > LD
Assuming you have control over the DNS for your domain, publish an SPF record to state which machines/IP-addresses are valid email sources for your domain. Then when spammers forge your addresses it will fail the SPF tests and SA will automagically add points to those messages. (it may also help to reduce back-scatter abuses of your domain). There are various online tools to create and test SPF records, see: http://old.openspf.org/wizard.html http://www.kitterman.com/spf/validate.html -- Dave Funk University of Iowa <dbfunk (at) engineering.uiowa.edu> College of Engineering 319/335-5751 FAX: 319/384-0549 1256 Seamans Center Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527 #include <std_disclaimer.h> Better is not better, 'standard' is better. B{
