When is it appropriate to use 'yours sincerely' and 'yours faithfully' when you sign off in a letter and email

Question

I need correct grammatical answers, spammers, keep OUT or i'll ban you!
Those who want my vote for best answer can also help me out by listing other phrases using in signing off and quoting me examples on how they are used

Answer 1

Neither of those are appropriate for business type letters. The Gregg Reference Manual states:

Sincerely or Respectfully are good closings for business type letters.

In the event you are writing to friends or family, either truly yours or sincerely yours works. The phrase "faithfully yours" indicates a husband or significant other.

Hope this helps you out.

Answer 2

Yours Faithfully is an old fashioned term...it was used for 99% of all formal letters.

While I was at school (in the 60's and 70's) we were taught that Yours Sincerely is a 'less dated' term and should always be used in place of Yours Faithfully.

Now, both sound fairly dated, so I would say that they are interchangable
(I always use Yours Sincerely)

Answer 3

If the letter or email is send to someone whom you have never met, sign off as "yours truly" others wise "yours faithfully" to an elder and "yours sincerely" when making a request. "Regards" is used casually in email too

Answer 4

As far as i can remember when i was told at work. If you have addressed them as Sir/Madam you should end the letter Your Sincerely and if you address them by their name (Dear Mrs Smith for example) you should end the letter Yours Faithfully. You can always sign off Kind Regards if you are not sure.

Answer 5

Its appropiate when writing a formal piece and you want a tactful closing.
Other quotes include "Talk to you later"(TTYL),"Bye for now"(Bye4Now),and "See you later"(CUL8R). Hope this helps.

Answer 6

I use "very truly yours" for a letter and "Regards" for an e-mail.