Re: GLUG: Maildir performance with IMAP ?
On Thu 2001-04-05 (08:48), Eugene van Zyl wrote: > Can anyone tell me wether there's a noticable performance hit when > using IMAP with maildirs vs the flat file formats? > > Read the UW-IMAP docs which indicated that this was the case - anyone > with experience that can comment? Sam Varshavchik (author of Courier) recently (as in less than a week ago) wrote a response to that documentation. It is at http://www.courier-mta.org/mbox-vs-maildir/ Neil -- Neil Blakey-Milner [EMAIL PROTECTED]
Re: GLUG: IMAP server recommendations ?
On Wed 2001-04-04 (15:59), Eugene van Zyl wrote: > Thanks, I'll courier looks like it then :-) > > With exim I saw the debian docs for courier indicate that I set Exim up for > maildir delivery - will the POP3 server pick the mail up correctly from the > maildir > then? also will the pop client (if not set to leave a copy on the server) > kill the > mail from the user's maildir, i.e. he won't see it with IMAP afterwards? is > there > a way to control this behaviour? Oh, that's something I forgot to mention - Courier-IMAP only does Maildir. At least to my knowledge, the default password/pam modules for Courier-IMAP will look in ~/Maildir/ (maybe it can even pick more up from PAM) for the mailboxes. POP3 and IMAP use the exact same configuration, so if one finds it, the other will. IMAP will use "Maildir+" folders inside the Maildir, which obviously won't be available directly via POP3. I'm sure minor module hacking could do it, maybe there're already examples. As for POP3, the server doesn't enforce deletion, it'll do whatever the POP3 client tells it to. Most probably don't set the "Leave mail on server" button, you may have to explain to your users to do so. I'd recommend moving over to a virtual user system (ie, no real user account on the machine). In that case, userdb, or whatever, can specify where exactly the Maildir will be, and things like that. Or use LDAP, or the myriad other options (vpopmail, &c.). Neil -- Neil Blakey-Milner [EMAIL PROTECTED]
Re: GLUG: IMAP server recommendations ?
On Wed 2001-04-04 (10:41), Eugene van Zyl wrote: > Hi, > > Any recommendations for a IMAP server (on Debian 2.2)? IMAP4.7c (I > think this is UW IMAP?) seems to intergrates relatively painless and > support most IMAP features (although I couldn't find anything on > shared folders), courier-imap seems technically better(?) but > confusing to set up especially making use of extended features like > its altered maildir standard for shared folders, I can't seem to > figure out what else this might break when using this? Also it's not > very clear with courier where exactly the mail folders are going to be > stored, /var/spool/mail or $HOME/? UW-IMAP indicates that folders are > stored in $HOME/ and it automatically picks up mail from > /var/spool/mail as well as $HOME/mbox, this doesn't indicate whether > these mail are then transported to an imap folder or left there (btw > this is makes me lean toward it for easier integration). UW IMAP has had a bad security run. It doesn't have much in the way of flexibility; it requires you to change the way you run things. > Then there's cyrus(cyris ?) imap as well. Couldn't really make much > from its docs though. Cyrus is the better mature IMAP server. > If someone that's running an imap server could give me some advice on > what/how to install and set up partitions for storage, and in general > which package gives the least headaces configuring. I also need to > supply webmail access so would welcome any recommendations. I'd recommand Courier-IMAP; it's almost free (GPL), it's fast, and it's modular and flexible. It can integrate into almost any situation, and can do IP-based virtual hosting, or username-based virtual hosting, and lots more. It's also designed in such a way that security problems are less likely - on one setup, only the port connector (tcpserver from ucspi-tcp) ran as root. It interacts with at least phpgroupware (a nice product, actually - cd /usr/ports/*/phpgroupware && make install, and access from http://localhost/phpgroupware/ on your nearest FreeBSD machine), and also has it's own direct-access webmail client, sqwebmail, which shares authentication and such modules with courier-imap. They're both part of the Courier Mail System. > Also, is running POP3 and IMAP simultaneously possible/a big no-no? > What caveats/issues are there? I think all have POP3 connectors - Courier-IMAP definitely does. It also supports STARTTLS and IMAPS and POP3S service. Neil -- Neil Blakey-Milner [EMAIL PROTECTED]