Mail10 wasn't down then, We will announce maintenance before it happens, I'd hoped to already but working to get some more ducks in a row first, they keep flying away on me, so to speak.
We are probably looking at a sunday night maintenance somewhere between 11PM and 3am to complete Mail10 maintenance now. It should be only 15-30 minutes. I am awaiting confirmation from linux side before posting, so this is not going to status just yet, but a preupdate here for what we are looking at, if mail10 were to have an issue before then, we could do the maintenance sooner to resolve as well.