qydlqcwsiacfymissuesapacheorg httpissuesapacheorgspamassassinshow_bugcgiid5817 additional comments wlbpaliggfaddostechca 20080213 1635 reply comment 4 daryl maybe late today missed wheres actual rule rule 70_othercf file sandbox available via svn httpwikiapacheorgspamassassinrulesandboxes name doesnt suggest checks first two ips equality rule checks suspected forged received headers checking external received headers contain dotquads duplicated one another hence name dos_forged_rcvd_quads rule sendmailish specific relies ip rdns examples ips rdns rule wouldnt fire ive added generic version rule dos_rcvd_ip_twice fire examples reply comment 5 fun hacking sa little masschecker plugin attach anyone interested fwiw could implement plugin via couple rules achieve result id either hopefully itll self documenting least document youre trying achieve plugin receiving mail assignee bug watching assignee tue 05 aug 2008 160844 0800 bug 5817 poorly faked mta received headers plugin