Apparently one server at a provider that relays SMS messages between carriers went offline on Feb. 14, and for some reason they didn’t bring it online until Nov. 7, at which point it started sending along all the queued messages.
So *what* happened makes sense, but the timeframe is… a little odd.
I really can’t come up with a *good* scenario for why they would wait 10 months to repair or reboot a server. *Best* case is they didn’t consider the queue at the time it failed, but also realized they could get by without the additional capacity until November, and instead of doing a clean install they just turned on the old spare.