How to tell someone about an affair.

[Anonymous1980]

Name changed for this.
Does anyone have any ideas on how I can tell someone that their husband is having an affair anonymously?
I cannot own it and tell her myself for many reasons so please don't suggest that.
I don't know her address. But do know phone number.
Thanks in advance.

No the truth is always the best.

Cheating men and women need to be exposed so they do not continue to harm innocent peoples mental health.

It's not a kind thing in life to exclude someone who is meant to be so close and trusting of you, it is the ultimate betrayal, the ultimate disloyalty and for two people to do that to another person is cruel beyond measure.

It takes a very poor human being to callously destroy an innocent party, I would say it is an inhumane act.

Tell the wife, be honest, have morals and allow the wife to know what's going on in her life. I don't care who the ow is, the man needs stopping, you will get many on here who do not agree with telling the truth, god knows why maybe they themselves are worried about being unearthed.

I've explained why I disagree @PiecesofFive and I've never had an affair or been a married man's affair partner in my life.
What I have done, is sat by the bedside of a young man who received just such a cowardly tip off as the OP is considering, a sneaky little anonymous text to tell him his wife was cheating, sent at a time when he was already vulnerable due to health issues, and which he received while alone, and while in a very poor place with his mental health.
His response was to attempt to take his own life, which by pure chance was unsuccessful. He will however suffer ongoing health issues as a result.
Now, I'm fairly certain the counter argument to that will be its not the interfering busybody's fault he did that, its his wife's. I disagree.
If he did need to find out, it should never have been like that. Had it been in a supportive way, with access to other people, when feeling less vulnerable, he would have not done it.
Nobody on here advocating an anonymous tip off to a stranger has the slightest idea of that person's circumstances, yet would in their self righteous arrogance, blunder in regardless. Call it the 'right thing' all you like. Its thoughtless, irresponsible and cowardly.