<!--Removed deleted image: -->The POP3 Connector
is a piece of software included with Small Business Server
(SBS) versions of Microsoft Exchange Server
that enables the server to fetch e-mail from external, 3rd party, POP3
The software can fetch e-mail on a per-user, per-account basis, or it can fetch e-mail from a catch-all account and distribute by the To: field based on the e-mail addresses assigned to users in Active Directory
. Note that the latter method does not work for bcc'd e-mails and some mailing lists, as the recipient cannot be easily identified by looking at the e-mail headers
. However, failed e-mail can be delivered to a central account, where the correct recipient can be identified manually and then distributed accordingly by the administrator.
The software is then scheduled to fetch e-mail at regular intervals, from once every 24 hours right down to once every 5 minutes (SBS 2008). If the situation requires it, an immediate download can be started from the configuration screen.
There are non-supported workarounds to shorten the fetch interval, such as on SBS 2003 creating the new DWORD value ScheduleAccelerator in the registry folder "HKLM/SOFTWARE/Microsoft/SmallBusinessServer/Network/POP3 Connector". The new fetch interval time becomes the interval time you have set in the configuration GUI, divided by the number you set as the value for ScheduleAccelerator. For example, if you have the interval in the GUI set to 15... Read More