Some small businesses still rely on external email accounts, and these accounts can be useful during the transition to a new SBS installation. We think using Microsoft Exchange is a far better solution overall, but SBS does support using external, Post Office Protocol v3 (POP3) email accounts. The Window SBS POP3 Connector has changed in SBS 2011 from the version in SBS 2003 in three important ways:
POP3 email is brought to the SBS server using SMTP, allowing for full scanning and filtering, and direct integration into Exchange.
POP3 email can be scheduled for retrieval every five minutes.
The POP3 connector no longer supports generic email boxes. Each email box must be explicitly configured and assigned.
Configuring POP3 email requires ...