Seeing as nobody has offered to do this free ;) I'd be interested to hear is anyone out there is interested in developing this project for me. It doesn't seem like a difficult task - security of the resultant qmail-pop3d is also important. I can swing $200-$300 for this. Please email me if you are interested. Regards, Paul. In article <7jhl3c$lvp$[EMAIL PROTECTED]> you wrote: > In article <[EMAIL PROTECTED]> you wrote: >> Paul Gregg writes: >>> Assume this setup is running perfectly (ok, I have 4,000 users using it). >>> >>> Essentially I'm thinking of enabling the user to login via POP3 as >>> '[EMAIL PROTECTED]' with their normal password. (I've written the >>> checkpasswd so it's easy to authenticate ok). >>> >>> What methodology could be used so that if they login with a specific >>> email address as a POP3 user then they only "see" email which is destined >>> for that user. but if they logged in without a user@ part then they would get >>> everything. >> You'll need a custom POP3 server for that. When the POP3 server >> initializes and scans the Maildir for messages, it should ignore messages >> that do not have a Delivered-To: address for the login user. >> Maildir-based POP3 servers are childishly simple, and you should be able to >> write one up, or modify an existing one, in no time at all. > Ok, I figured out how best to code this up. > Essentially, one needs to patch get_list() in qmail-pop3d.c > get_list calls maildir_scan() (in maildir.c) to return a list of filenames, > which get_list() then parses through to build a list of files/emails > which are in the Maildir. > This routine needs to also add the Delivered-To: checks that are in > serialsmtp.c from the serialmail package. > Simply we could call checkpasswd qmail-pop3d Maildir and checkpasswd could > exec @ARGV, but add user@host to the args (so qmail-pop3d could read it). > The check would need to find the Delivered-To: (first one) line > and do a search in the string for /user@host/ (the login pop3 id). > (checkpasswd could munge it whatever way you wanted to cover for user%host > if you had to). > Anyone feel up to the task? I'm afraid my C coding skills leave much to > be desired - never got time to learn :(