Best regards/ The best regards

Please tell me, why we write at the end of a letter/message to a friend/colleague:

Best regards,

and not:

The best regards,

Thanks

it can be considered to be a shortened form of something like
My best regards to you.

However it has become a valedictory phrase which does not require the longer sentence.

[color=blue]Maybe no one knows the definite answer to your question, but a likely answer is that people like to shorten their speech and writing by eliminating unnecessary words.

Hi Saneta,

You don’t need the definite article ‘the’ because ‘best regards’ is not qualified. You would use it in a sentence like this -

The best regards that I can imagine.

Note also that we wouldn’t use the definite article with ‘Best wishes’.

Alan

Thank You all of you.

I 've got it.