On Saturday, October 10th, I will be making a relatively significant change to email services on my websrv04 hosting server. This change involves migrating the mail server software in use from QMail+Courier to Postfix+Dotcove and changing the spam/virus protection component from MagicSpam to Plesk Email Security Pro.
This migration will result in mail services being offline for a short period of time (< 30 minutes). It may also result in your local email client (e.g., Outlook, Apple Mail, Spark, etc.) re-downloading all of your messages when the migration is complete.