Yes so people can reply to the letter. Only if you wish the recipient to know who sent the letter before they open it, or if you suspect the letter may be undelivered and you want it back.
It is a good idea to use a return address when sending a letter. Oftentimes, the post office will not accept a letter that does not have a return address on it.
Return address, date, letter mailing address, and salutation.
Return of address (Apex)
The part of a letter that contains the address of the sender is the letterhead or (for plain paper) return address.The part of a letter that contains the name and address or the address of the recipient is called the inside address.
Heading
The return address on a letter is the address of the person sending the letter. It is important for the recipient of the letter to know from whom and where the letter originated and to have an address to respond, if necessary.
The return address of a business letter is the address of the sender. Business letters are usually written on letterhead which have the company name and address preprinted on the paper and if that's the case, it's not necessary to also write the return address on the letter. That is also true of envelopes that are preprinted with the company name and address.
Yes, a return address is not necessary for delivery as long as the recipient's address is correct and adequate postage is affixed. The return address is only needed if the letter cannot be delivered, so that the sender can get it back and try to fix the problem.
It is a good idea to use a return address when sending a letter. Oftentimes, the post office will not accept a letter that does not have a return address on it.
Receivers address on the right. I do not think a return address is necessary. I believe the rest of the format should be like writing a note or a letter.
You should include your return address in the heading.
The salutation itself ("Dear Ms. Jones") should not include your return address. On a business letter, the return address can go in the upper right corner of the cover letter. The salutation goes below the delivery address.
Return address, date, letter mailing address, and salutation.
Return address, date, letter mailing address, and salutation.
Return of address (Apex)
There are many: Stamp Date Address sent to Return address
If a political candidate sends along a return envelope marked "no postage necessary" then mark in bold letters a request to remove your name and address from his/her mailing list and return it to their mailing address. They pay the postage. If the return envelope has no postage paid for return then mark the letter the same way and return it postage unpaid anyway. Make sure your name and address are not printed on the back of the return envelope. If so, throw it in the trash.