Setting Up An IMAP-Based Email Solution, part 5

by Jim Freund

Traditionally, Unix-based systems use POP servers for retrieving email, but in today's environment, where users log in from multiple location using varied clients, this can prove problematic. One solution is to use IMAP instead. After going through the tutorials on setting up your own server in previous weeks, this time we summarize some of the commercial and other out-of-the-box solutions.

Stew Benedict's article serialized on CrossNodes over the past month has dealt with a roll-your-own approach to running IMAP services on *NIX servers, but of course, you can always look for an out-of-the-box solution. Fortunately, there are a number of well-regarded entries in this vendor space.

The most obvious disadvantage to purchasing software as an IMAP solution is money. The methodology as presented by Stew is free -- after you factor in your time commitment, of course. Additionally, while you will be able to find support in the form of gurus who lurk within Usenet news groups and similar resources, you won't have a specific vendor whose job it is to get you out of a jam should one occur.

Another way of handling IMAP under *NIX is with software that add functionality to already existing services. For example, Courier IMAP is a server that provides IMAP access to systems using Maildirs -- the directory-based mail storage format. Issued under the GNU General Public License, you can't beat the price.

However, by purchasing a ready-to-roll package, you can save yourself some time, and ease the configuration and interface issues; making it easier for less advanced administrators to implement and maintain. Selecting a hearty, feature-laden package can provide one-stop shopping for your communications needs.

One of the most popular of these is Stalker Software's CommuniGate Pro. CommuniGate Pro can run on any number of *NIX variations as well as Apple's OS X, Windows, and BeOS. More than an IMAP solution, the product also supports POP, LDAP, SMTP, HTTP, Domain Name Resolution, mailing lists, and more. Trial versions are available at Stalker's Web site.

Probably the favorite among the guru crowd is Sendmail, the original version of which which defined the way messages are sent through the Internet. The company has grown over the last 20 years now offers commercial packages such as the Single or Multi-Switch Consoles or the Sendmail Advanced Message Center targeted at enterprise and ISP-level networks.

What follows is a listing of the primary packages available to provide IMAP services under *NIX:

Product Name:   CommuniGate Pro
Vendor:         Stalker Software 
email:          sales@stalker.com 
phone:          (800) 262-4722 or (415) 383-7164
Trial Version:  Yes

Product Name:   Courier-IMAP
Vendor:         Inter7 
email:          info@inter7.com
phone:          (847) 492-0470 
Free Version:   Yes

Product Name:   Cyrus
Vendor:         Carnegie Mellon University
Free Version:   Yes

Product Name:   DC-Mailbox
Vendor:         Data Connection Ltd.
email:          messaging@datacon.co.uk
phone:          +44-208-366-1177

Product Name:   Domino
Vendor:         Lotus Development Corp. 
email:          see www.lotus.com/contacts
phone:          (617) 577-8500
Trial Version:  Yes

Product Name:   Groupwise
Vendor:         Novell
phone:          (801) 861-7000
Trial Version:  Yes 

Product Name:   IntraStore
Vendor:         Control Data Systems
email:          info@intrastore.cdc.com
Trial Version:  Yes 

Product Name:   M1000
Vendor:         Mirapoint 
email:          info@mirapoint.com
phone:          (408) 517-1300

Product Name:   Netscape Mail Server
Vendor:         Netscape Communications 
phone:          (415) 937-2555
Trial Version:  Yes 

Product Name:   MD Store
Vendor:         MessagingDirect Ltd.
email:          sales@messagingdirect.com
phone:          (800) 850-0114

Product Name:   PMDF-MTA
Vendor:         Innosoft International
email:          sales@innosoft.com
phone:          (626) 919-3600
Trial Version:  Yes 

Product Name:   Sendmail Advanced Message Server
Vendor:         Sendmail, Inc. 
phone:          (510)-594-5400

Product Name:   Sun Internet Mail Server
Vendor:         Sun Microsystems
email:          see http://www.sun.com/smi/contacts.html
Trial Version:  Yes 

Product Name:   University of Washington IMAP Server
Vendor:         University of Washington (Seattle, WA USA) 
Free Version:   Yes
This article was originally published on Friday Jul 6th 2001