Adding some Watchdog Lines to ThankYou

For when we would otherwise failmail.

Change-Id: Id8a98ff8fab04bfff00da5067d83394d9969cc08
Moar Better Logging

Also log when we start the send and I missed a parameter

Change-Id: I2a192fee492cf6abee71c7119918e1dd9e86d32e
Failmail now has a log line!

It's not as detailed as the whole email but it at least tells us
if a failmail occured and what the error was that caused it.

Change-Id: Ie7df006264905b6f06c2819ccc80bdb9a64aaea9