theo van dinter felicityklugenet fnm8lrgftvs3gum contenttype textplain charsetusascii contentdisposition inline contenttransferencoding quotedprintable fri sep 13 2002 013343pm 0500 vernon wrote understand dns records used rotating fashion load balancing dns mx records used order prority meaning 10 20 20 10 isnt available thats theory yes mail actually scanned leads believe mail actually hitting box 10 never goes got something confused either due technical glitch downright wanting people send secondary semiusual spammer trick actually bypass main server send directly secondary since either less filtering trusted mx records mail world explained rfc 2821 section 5 multiple mx records contain preference indication must used sorting see lower numbers preferred higher ones multiple destinations preference clear reason favor one eg recognition easilyreached address sendersmtp must randomize spread load across multiple mail exchangers specific organization determines relay message without rewriting address must sort mx records determine candidates delivery records first ordered preference lowestnumbered records preferred relay host must inspect list names addresses might known mail transactions matching record found records preference level highernumbered ones must discarded consideration records left point error condition message must returned undeliverable records remain tried best preference first described 20 randomly generated tagline lets say like sheep lets say take sheep a20 christmas party bob golub fnm8lrgftvs3gum contenttype applicationpgpsignature contentdisposition inline begin pgp signature version gnupg v106 gnulinux comment info see httpwwwgnupgorg id8dbqe9gjx9auoquewas2mrag7paj42ko68knzx76oqbrzpmgdgjbjhacfqvlx outl8fy01ase3vne9wwm o6ku end pgp signature fnm8lrgftvs3gum sfnet email sponsored bythinkgeek welcome geek heaven httpthinkgeekcomsf _______________________________________________ spamassassintalk mailing list spamassassintalklistssourceforgenet httpslistssourceforgenetlistslistinfospamassassintalk fri 13 sep 2002 150118 0400 satalk ot dns mx record clarification please