SPELT when used as a noun is a form of ancient wheat.

SPELT when used as a verb is the past participle of spell.

Merriam-Webster: Spelt. verb. "British past and past participle of spell"

So you see, you just "might" have received an email from an occupant of the British Isles, someone who does in fact speak "real" English.

The "American" version of English is what throws people around the world for a loop.

Pete