Remote access must be installed with a pre-configured ISP profile in order to use the dial-up features. The service is configured to dial-up and download mail after successful connection and disconnects when finished downloading. If the connection with the POP3 server is through dialup, the service checks the scheduler that contains the hours of the week when the dialup is allowed. The GFI POP2Exchange service checks for new messages in the POP3 accounts, downloads them and sends them to the local SMTP server for delivery, by submitting them to the Pickup or Replay folder (in Exchange 2010 and above) via the Pickup Submission Module (PickupSM). This article covers how the GFI POP2Exchange Service works and the steps to properly configure the module in order to enable the GFI POP2Exchange Service which is the MailEssentisls POP3 downloader.
Notwithstanding this fact, and to cater for situations where a static IP address required by SMTP is not available, GFI MailEssentials can use POP3 to retrieve email. However, the recommendation for GFI MailEssentials is, if possible, to avoid using POP3 and to use SMTP (Simple Mail Transfer Protocol) since POP3 is designed for email clients and not for mail servers. The POP2Exchange module provides the functionality to download emails from a remote POP3 (Post Office Protocol version 3) server, process the emails, and route them to the local mail server.
