A furious husband has started a smear campaign against the man who seduced his wife.

According to a letter posted to Reddit, the husband found out that his wife has been cheating on him for more than a year. She promised to cut off ties with “Charles,” her lover. But the trusting hubby found out later that Charles had never left her mind.

He’s filing for a divorce, but first he is set on “spreading the word about this lowlife loser.” Afraid of losing his kids, going to jail or possibly getting hurt (note: “Cheating Charles” is 6’3, 195 lbs.), the husband resorted to letter writing.

He decided to air the “other man’s” dirty laundry in public — including his name, birthday, address, phone number, height, weight and license plate on the letter.

But he’s not stopping there.

“I will be going to his job tomorrow and attending his church on Sunday to let everybody know the kind of man that he is,” the crumpled letter reads.

His missive ends with a docile “Have a nice evening.”

Some Reddit users are calling his act “passive aggressive.”

“The dude’s high road sits pretty low,” kankernee commented.

“Stuff like this can be brought against him, anyway. Especially showing up at Church … not good,” wrote dageekywon. “Get your revenge in Court.”

It’s unclear whether the husband actually followed through on his promise to stand up to the church-going “Cheating Charles.”

Some users hoped that the scorned husband “pulled a Kanye” during the Sunday service.

“Yo, pastor, I’ma let you finish…” wrote phrankygee.