As previously mentioned we're in the process of bringing a secondary MX online.

As part of this expansion the configuration of the primary MX (incoming.mail-scanning.com) has undergone many significant changes.

(These changes are mostly internal, moving away from a centralised database to one that may be replicated to an arbitrary number of secondaries. I'm happy to share details if there is any interest just mail me privately.)

The final step prior to the migration will occur tomorrow morning, and will involve around ten minutes downtime to the primary and the website.

Once that has completed the secondary will undergo testing for a couple of days to ensure it works appropriately, and then will be made available to all current and future users.