[misanthrope]

“And he requires employees to have at least two other people copy-edit and make corrections to every important email and letter that goes out. “

You never begin a sentence with “And”. It’s a rule.

[Future Snake Eater]

You never begin a sentence with “And”. It’s a rule.

It's not a rule, it's simply a guideline. Stylistically, its use can be defended from time to time, though it's not something I would use too often.

[Fiji Hill]

You never begin a sentence with “And”. It’s a rule.

The Bible is full of sentences that begin with "and." This seems to occur more in the Old Testament books translated from Hebrew and not so much in the New Testament books translated from Greek.

[Oztrich Boy]

You never begin a sentence with “And”. It’s a rule.

It is a stupid rule to which noöne with discernment pays heed.

And Fowler, Gowers, the OED, and the Bible support me on this.