Compile vpopmail with the configure line to allow for authenticating system users, that way current users will not be affected. I forget which option it is, just a ./configure --help should tell you. Then users can keep logging in normally, and it should be no problem. This way users with a Maildir in their homedir can still get mail.I've got an existing qmail installation (installed according to LWQ). I've got the SMTP AUTH patch from http://members.elysium.pl/brush/qmail-smtpd-auth/.
Currently, I'm processing the mail for several domains on the box, using system accounts for all users (of which there are 7 -- it's a personal box). This means that all users have email addresses on all of the domains that this box serves (of which there are 5). They generally only give one of them out, though.
I'd like to start handling email for yet another domain, but I'd like to start separating the user accounts.
The machine handles SMTP (using SMTP AUTH for roaming users) and POP3. It also hosts several top-level (/var/qmail/alias) mailing lists (using ezmlm-idx). I'd like to add IMAP.
So, I'm thinking of installing vpopmail to do this. I have some questions:
1. Can I install it incrementally?
I'd like to break as little as possible.
Can I install it solely for the new domain,
and then gradually migrate the other domains across?
Note: Have not tested this myself
2. Can I use the vchkpw program with the SMTP AUTH patch?I am not sure if vchkpw can do md5 checking, but yes it can do smtp auth, you will have to run qmail-smtpd as root to do so, but that should not be a problem
Currently I'm using cmd5checkpw from
3. Can I use the vchkpw program with BincIMAP?I would not know, but another good imapd is courier-imapd. This is from inter7 as well, so it is easy to use with vpopmail.
This is the IMAP server that I'm currently investigating.
4. Is it easy to use the CDB authentication? With only 7 or so users,You should not notice the difference, personally i use cdb as i do not trust MySQL, if MySQL goes down, and my mail server is still up, i am still screwed as i can not fetch my mail, so i do it hd based, rather than MySQL, as i have had MySQL crash quite a few times. So yes CDB is standard for vpopmail, so it should be no problem at all.
it seems like overkill to use mysql.
Hope that helps.