This one time, at band camp, kenneth dombrowski said: > Carlos Sousa wrote: > > > >>Quite how the password gets from the pop3 reference to the smtp bit, I > >>don't understand... > > > > > >I don't see how it can. This config shows how fetchmail *gets* mail > >using pop3 authentication, the *sending* of mail has nothing to do with it. > > I have a website hosted out in CA (I'm in NY so obviously I'm not using > them for home connectivity & am not on their network) which runs exim > 3.36 #1. Authentication for outgoing mail seems to be based on whether > I've logged in to the POP/IMAP server: steve:~$ apt-cache show pop-before-smtp Package: pop-before-smtp Priority: extra Section: mail Installed-Size: 164 Maintainer: Jonas Smedegaard <dr@jones.dk> Architecture: all Version: 1.31-2 Depends: postfix | postfix-tls, libfile-tail-perl, libtime-hires-perl, libnet-ne tmask-perl, libtimedate-perl, libappconfig-perl, libberkeleydb-perl, perl Suggests: imap-server, pop3-server Filename: pool/main/p/pop-before-smtp/pop-before-smtp_1.31-2_all.deb Size: 33522 MD5sum: 0f47725f7cf074ab93bcfd32f8634345 Description: watch log for pop/imap auth, notify Postfix to allow relay Spam prevention requires preventing open relaying through email servers. However, legitimate users want to be able to relay. If legitimate users always stayed in one spot, they'd be easy to describe to the daemon. However, what with roving laptops, logins from home, etc., legitimate users refuse to stay in one spot. . pop-before-smtp watches the mail log, looking for successful pop/imap logins, and posts the originating IP address into a database which can be checked by Postfix, to allow relaying for people who have recently downloaded their email. . Contrary to other similar tools pop-before-smtp needs no hacking in the mail daemons. On the other hand it requires the pop3/imap daemons to run on the same machine as pop-before-smtp and postfix. HTH, -- -------------------------------------------------------------------------- | Stephen Gran | "The algorithm to do that is extremely | | steve@lobefin.net | nasty. You might want to mug someone | | http://www.lobefin.net/~steve | with it." -- M. Devine, Computer | | | Science 340 | --------------------------------------------------------------------------
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