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I am upgrading to Exchange Server 2007, and realise that Microsoft does not ship a POP3 connector with 2007. There appears to be several commercial offerings (MAPILab, POPcon, Exchange Connector)

Do you have any recommendations/warnings about these products?

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closed as not constructive by Mark Henderson Jan 16 '12 at 3:44

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FYI Small Business Server still has the POP3 connector - obviously no use to you if you are not using SBS... –  Jon Rhoades Dec 21 '09 at 5:23

4 Answers 4

If you're up for trying a free / open-source offering, I've used the Cygwin distribution of fetchmail with success before. I had it running as a "Scheduled Task" every 5 minutes for the better part of 2 years with no problems. It speaks plain ol' SMTP, so although I was using it with Exchange 2003 it should work fine w/ Exchange 2007.

Rather than doing a full install of Cygwin onto my server computer, I opted to pull apart a working install and figure out what .DLL files were needed to make fetchmail work. I also wrote a little script to call fetchmail as a Scheduled Task (because fetchmail needs the HOMEDRIVE and HOMEPATH environment variables set).

If you want my fetchmail "distribution" you can grab it at: http://opensource.wellbury.com/projects/minimal%5Fcygwin%5Ffetchmail/

  • Dump all the files into "C:\Program Files\Fetchmail" from the ZIP above.

  • Create a user for the Scheduled Task to run as. The fetchmail user can (and should) be an unprivileged user, but you'll need to grant the built-in group "BATCH" "Read / Execute" permission on "%SystemRoot%\System32\CMD.EXE" in Windows 2003 and newer OS's (I bashed my head into this issue for hours... see http://support.microsoft.com/kb/867466/en-us for details).

  • Temporarily grant the fetchmail user "Logon Locally" rights and logon locally. (This is an easy way to get the fetchmail.conf file owned by the fetchmail user, and allows you to test the configuration before you make it a Scheduled Task.)

  • As that user, create a ".fetchmail" folder in its user profile directory. Create a "fetchmail.conf" file in the ".fetchmail" folder (I put a sample fetchmail.conf in my ZIP file).

  • Using the "do-fetch.cmd" script, verify that fetchmail works properly from the command-line as that user. The STDOUT and STDERR output of each fetchmail run get logged into the .fetchmail folder.

  • Remove the "Logon Locally" right for the fetchmail user and setup a Scheduled Task to call the "do-fetch.cmd" script as that user (which will, in turn, grant that user "Logon as a batch job" rights).

This isn't the most current verison of Cygwin or fetchmail, and there may well be security vulnerabilities. This all worked for me, but you might want to download the most current versions of all the files in the ZIP, replace them, and verify it works properly.

Like Sam says, you really should use SMTP to receive your mail if you can, but sometimes you have to do what you have to...

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I've previously used both PopCon and PopBeamer on small Exchange setups and have had no problems with either, they've just worked.

Personally I try to encourage the use of SMTP to receive their mail, rather than a POP connector, but sometimes you have no choice.

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I've been using Exchange Connector for some time now, and it works great.

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