There is a problem with how the POP3 connector processes certain messages downloaded from a POP3 server. This problem could result in the POP3 connector accidentally re-sending certain messages to recipients who are not part of the SBS server e-mail domain. This may happen only in the cases where the POP3 connector is used to download mail from an external POP account. Customers using Exchange to host their mail internally will not experience this problem. This update resolves this issue. All SBS customers are encouraged to install this update.
Download: Update for Windows Small Business Server 2003: KB 835734
