Email server Summary/Landscape

Thu Aug 7 10:42:24 EDT 2003

ok I'm going to setup a test environment, I'm also doing mailscanner, 
which right now works fine with sendmail, I assume it can be chnaged to 
do postfix or others, but I'm not sure how many elements I feel like 
changing.

Justin

Brad Bartram wrote:

>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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>>>
>>>---
>>>Incoming mail is certified Virus Free.
>>>Checked by AVG anti-virus system (http://www.grisoft.com).
>>>Version: 6.0.504 / Virus Database: 302 - Release Date: 7/24/2003
>>>
>>>
>>>---
>>>Outgoing mail is certified Virus Free.
>>>Checked by AVG anti-virus system (http://www.grisoft.com).
>>>Version: 6.0.504 / Virus Database: 302 - Release Date: 7/24/2003
>>>      
>>>
>
>  
>

-- 
Justin Bennett
Network Administrator
RHCE (Redhat Certified Linux Engineer)
Dynabrade, Inc.
8989 Sheridan Dr.
Clarence, NY 14031

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