How to Set Up an Out of Office Auto-Reply in GMX Mail

Smack in the middle of the ocean between Brazil and Angola, Ascension Island was claimed and first inhabited by the British in 1815 — as "HMS Ascension", for a while, a "Sloop of War of the smaller class". Running a ship is more straight forward, after all, for a navy than governing an island.
Now, whether you're headed for an island, ship or both, GMX Mail can run answers to the emails you get in the meantime:
›› You can't reply for a while and want email senders not to panic but wait — or contact somebody else in the meantime? Here's how to set up a vacation auto-responder in GMX Mail.