What is mail spooling?
Mail spooling service is for hosts that do not have a full time connection or as a backup email solution in the event of your mail server going offline. Emails coming to yourdomain.com will be queued in our mail server for up to 5 days. If your mail server has an intermittent Internet connection then the mail server in your corporate LAN connects to our server to de-queue the mails. Common PC LAN GroupWare Applications like Novell GroupWise and Microsoft Exchange support ETRN for mail retrieval. The ETRN command is an extended Simple Mail Transfer Protocol (SMTP) e-mail de-queuing command that is issued to an e-mail host for Internet e-mail retrieval. Otherwise, our server will automatically send all queued mail to your server when it becomes available.