to whom it may concern

Idioms  

1. To the appropriate recipient for this message, as in I didn't know who was responsible for these complaints so I just addressed it “to whom it may concern.” This phrase is a formula used in letters, testimonials, and the like when one does not know the name of the proper person to address. [Second half of 1800s]

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Example Sentences

But when discussing the need to respect borders and not violate them by force, as Russia did in Ukraine, Scholz emphasised that the concept applied to "everyone" and added, in English: "To whom it may concern."

From BBC

“To whom it may concern, Shéyaa Bin Abraham-Joseph, known officially as 21 Savage, is now cleared to travel up north and perform for his beloved fans,” a voice announced onstage during Drake’s performance.

From Los Angeles Times

Craig Smith, the attorney concurring on behalf of Edward, highlighted the document's first line: "To whom it may concern and being of sound mind, I write my will and testimony."

From BBC

“Lisa Marie never wanted to trade off her status and fame,” said Glen Ballard, the seasoned songwriter and producer who co-wrote much of the material, including “Lights Out,” on “To Whom It May Concern.”

From Los Angeles Times

The singer, who died Thursday at age 54 after suffering cardiac arrest, released three studio albums, beginning with 2003’s “To Whom It May Concern,” which featured “Lights Out” and went on to be certified gold for sales of more than 500,000 copies; a second LP, “Now What,” came out in 2005, followed seven years later by “Storm & Grace.”

From Los Angeles Times