On Sat, Aug 26, 2006 at 07:25:51PM +0530, Ajay Nawani wrote: > > Dear Sameer, > > What's solution to implement a frontend server because mx1.hello.com simply > accept all the mails and then forward to pop.hello.com and then > pop.hello.com reject non-exist mail-ids. > > I want to reject non-exist mail-ids at mx1.hello.com itself.
I use asmtpd [1] to solve a setup similar to yours. asmtpd is an aggresive antispam SMTP server (it runs instead of tcpserver on port 25), you can hook an _arbitrary_ check at SMTP time using shell scripts. It's highly configurable (from RFC complaint to antiSPAM paranoid), and very verbose in logging (if you want). Some days ago I posted my configs to a local mlist (mainly because I hadn't find any useful example for qmail-ldap+asmtpd on the net): http://www.lugmen.org.ar/pipermail/lug-list/2006-August/042280.html , it's in spanish, but the configs are LANG agnostic ;) You'll find the "main" rcpt check I use in /etc/avenger/default as: : FOUND=$(/var/qmail/bin/qmail-ldaplookup -m "$RECIPIENT") test $? -ne 0 && defer Temporary error in ldapsearch case "$FOUND" in *Found*entr*) ;; *) reject "User unknown, bye";; esac In your setup you may need to replace the comfortable qmail-ldaplookup with a specific ldapsearch, eg: ldapsearch <...> "(|(mail=$RECIPIENT)(mailAlternateAddress=$RECIPIENT))' dn Regards. -- --Juanjo # Juan Jose Ciarlante (JuanJo) jjo ;at; mendoza.gov.ar # # GnuPG Public Key: gpg --keyserver wwwkeys.eu.pgp.net --recv-key 66727177 # # Key fingerprint: 0D2F 3E5D 8B5C 729E 0560 F453 A3F7 E249 6672 7177 #
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