I received an email from someone I haven't known. It's a letter related to my job, in other words - a business one.
How would you write him an answer highlighting that you don't know this person and your possible actions depend on who he is.
In a hurry I sent something like: "I'm sorry, but I don't know you, so...", but I think it sounds rude.

  • 1
    It is never rude. He should have identified himself in the first place, especially when it comes to a business letter. Not only was he rude, but also unprofessional. – user140086 Oct 11 '15 at 3:30
  • @Rathony I share your point of view, but I think although someone sounds a bit rude, still we shouldn't respond in kind, that's why I asked this question – Vitaly Zinchenko Oct 11 '15 at 11:58
  • I know. If you don't like what you wrote down (which doesn't sound rude to me), you can use the below answer. It does sound better for sure. – user140086 Oct 11 '15 at 12:04

You could say:

My apologies, but I don't believe we've met. Before we proceed further, could you please verify that I'm the person you meant to contact?

  • This is a good answer to the question in the title ("How to politely say 'I don't know you'?"), but I think it would be pretty awkward in the e-mail context described in the body. – ruakh Oct 10 '15 at 21:03
  • @ruakh A fair point. I've expanded my answer to address that. – Gnawme Oct 10 '15 at 21:27

"Considering that we are not acquainted..."

"Given the sensitive/confidential nature of this subject..."

"I am afraid this is a company/internal matter."

If you want to keep the same basic form, it's politer to say "I don't believe I know you..." However this leaves a slight bit of doubt, so that he could conceivably come back and say "oh yes, we met, remember?" If you really want to be clear that you don't know the person, use something like the first three above.

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