“Pontifications by email” makes it clear enough. Email is an automated message delivery system, and the pope delivers messages from above, soooo…

Such are many of the names coined by creative minds using the early internet.

Pontificate in its original sense literally means to perform the duties of a pope or priest (a pontiff). The auto part I guess because it’s email? That part is shakier

Automatic Pope, presumably. Offering pontifications (opinions) via technology (automated). “Pontiff” is another word for pope.

Clearly it means self-pontification.

look up the word pontiff