Email server Summary/Landscape

[Brad Bartram]

You can also use postfix.  It comes with red hat by default, supports Maildir 
and thus Imap servers can interface with it.

brad

On Thursday 07 August 2003 10:21 am, Justin Bennett wrote:
> I've pretty much come to the conclusion that we need to do maildir but
> you can check my reasoning. We are doing UW-Imap to mostly
> netscape/mozilla clients (using sendmail/procmail) we have over 200
> users worldwide. We use squirrelmail to allow user to remotly access
> their mail. We have had requests for subfolders, but this is not a show
> stopper. Our european group wants subfolders so they copy their mail to
> their local folders in mozilla, so if their box dies, their hosed. Many
> users have extremly large inboxes, many over 200MB. We're trying to get
> them to file mail, or delete it but thats a seperate issue. Quotas on
> /var is always an option. Anyways when you open inbox in squirrelmail
> and it needs to parse a 200MB file it slows to a crawl. So I belive
> going to maildir is the best solution all around. I don't want to stray
> too far from the 'canned' Redhat Linux Enterprise product, just to keep
> things easy for update purposes. So procmail and sendmail with courier
> is prob the best option.
>
> Justin
>
> Mark Musone wrote:
> >For brevity's sake below is a quick summary that tries to simplify
> >things
> >
> >Mail Server			POP Server		IMAP Server
> >Native Format
> >
> >qmail				qmail-popd		NONE
> >Maildir
> >sendmail			uw-popd		uw-imapd
> >unix mailbox (*)
> >							courier
> >Maildir
> >Cyrus				Cyrus			Cyrus
> >Proprietary
> >
> >(*) Although the native format is unix mailbox, It's easy to change it.
> >
> >
> >IMHO, if you want to go with Maildir as your format, your probably best
> >off
> >going with the following options in order of best-fits:
> >
> >1. qmail Mailserver and the POP/IMAP server that natively supports
> >Maildir, meaning qmail and courier.
> >
> >2. If you don’t want to use qmail, since sendmail is easy to change
> >formats (using procmail), sendmail+procmail and courier
> >
> >3. If you don’t want to use courier for the imap server, you can use
> >sendmail+procmail and uw-imapd patched to use Maildir.
> >
> >
> >The one thing overall I'd caution is that you currently seem
> >predetermined to use Maildir. Generally you should determine the
> >following in order for the end email system:
> >
> >
> >1. What is the current number of users?
> >2. What is the email client the users are using
> >3. What is the average and maximum mailbox size
> >4. What is the average and maximum mail message size
> >5. What is the frequency and concurrency of email checking
> >6. what is the average and maximum number of mail messages per box
> >7. What is the average number of mail messages in/out per hour
> >8. What is the average "live" message time (how long do message sit
> >around till the end user deletes them)
> >
> >The above answers should determine the mailbox format for you (not the
> >other way around)
> >Once you have the mailbox format, then you can go on and choose the best
> >mail server and access server.
> >
> >barring all of the above..heh...just pick one and go with it!!! in most
> >small business to medium business needs, simply anything will work fine.
> >
> >Good Luck!
> >-Mark
> >
> >
> >-----Original Message-----
>
> From: owner-nflug at nflug.org [mailto:owner-nflug at nflug.org] On Behalf Of
>
> >Robert Meyer
> >Sent: Thursday, August 07, 2003 9:30 AM
> >To: nflug at nflug.org
> >Subject: Re: Maildir
> >
> >I used the uw patch.  Bad things happen... Outlook kills it in a bad
> >way.
> >
> >I've used courier IMAP with Outlook with good success.  It uses the
> >'maildir'
> >format.  Courier uses it's own daemon (as opposed to using (x)inetd) and
> >can be
> >customized for numbers of allowable connections.
> >
> >As far as storing maildir format, you can do it in sendmail by using
> >'procmail'
> >as your mail delivery agent.  It's a two line config for procmail and
> >you
> >specify procmail as your MDA in your sendmail config.  It took me about
> >20
> >minutes to research and write the appropriate configs the first time I
> >did it.
> >
> >Cheers!
> >
> >Bob
> >
> >--- Justin Bennett <justin.bennett at dynabrade.com> wrote:
> >>I know there has been some discussion about this before, but here
> >
> >goes.
> >
> >>I'm looking for an imap/maildir solution that is easy to maintain. I
> >>have systems here and in europe and use Redhat Enterpise with Redhat
> >>network to keep them up on updates and security patches. I would like
> >
> >to
> >
> >>do maildir, but all the solutions I seem to find require custom
> >>compiling software (qmail) to do this. Anybody have an easier
> >
> >solution,
> >
> >>I know there was talk of a UW patch, I assume you still need qmail
> >
> >though.
> >
> >>--
> >>Justin Bennett
> >>Network Administrator
> >>RHCE (Redhat Certified Linux Engineer)
> >>Dynabrade, Inc.
> >>8989 Sheridan Dr.
> >>Clarence, NY 14031
> >
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