I host my own e-mail. People who send mail to me don't get their mail bounced back, but I can't see the mail coming in.

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If you are running WorkgroupMail on Windows 2000 server, please ensure that the IIS SMTP service is not running. Click Here for more information. If you did need to stop the IIS SMTP service, restart the WorkgroupMail server program. Mail should now start arriving into WorkgroupMail.