[KLUG Members] Sendmail + tmail = pain

[members@kalamazoolinux.org]

>Okay.  I apologize for posting again with a similar issue, but I'm racking
>my brain to death over this issue.
>I have a up and running sendmail daemon using procmail.  I'm trying to
>convert it to use tmail instead of procmail so that I can take advantage of
>tmail's mbx mail format capabilities.

mbx?  What is that?  I've heard of mbox and mh, but not mbx.

>I've followed the instructions from the tmail manpage, although they are a
>bit cryptic to me. 
>In my sendmail.cf, I've got this as the tmail args:
>-D -I mbox $u
>D = debug, I = mail style, and $u is the user.  By default, it throws the
>mail in INBOX in the users home dir. I've found that if I use the -I option,
>tmail yells (it says on the manpage that it must be SUID root, which it is)
>that it can't, as root, deliver mail to ordinary users...

Never heard of tmail.  Is there a homepage?

>So, I'm stuck with that, and with the fact that I'm told to have tmail
>deliver mail to the standard mail spool directory /var/spool/mail.
>Question:  Is there a way to do what I want? Are there other programs that
>can use the mbx format?  Will imapd and ipop3d be able to read the mbx
>format?

I'm pretty sure the RedHat stock IMAP/POP deamons only do mbox.  Cyrus-IMAP 
supports everything under the sun so that might be worth looking into.