yes
Yes, it is correct to use a capital letter after the comma in "Dear Sir" as it is used as a salutation at the beginning of a letter or email.
yes.
Yes, when addressing someone directly in a letter or email, you should typically use a comma after the salutation. For example, "Dear Sir," or "Dear Mr. Smith,".
Formal salutations are always followed by a colon. (Dear Sir Only in informatal writing do you use a comma. (Dear Sue,)
A comma is not required in the salutation of an editorial letter. You can use either a comma or a colon after the recipient's name. For example, "Dear Editor," or "Dear Editor:".
If you're writing a letter, after Dear Billy is should be a comma.
No. After the word and comma can not be used, as it is grammatically inappropriate to use comma after conjunctions such as and, which are called coordinate conjunctions.
In business letters, you should use a colon (:) if you use any punctuation. The new way is to have no punctuation after the greeting in business letters. But if you omit punctuation there, you also have to omit the comma after the closing. In personal letters, people use a comma after the greeting.
The alternative to addressing someone as "dear sir or madam" is to use a gender-neutral greeting like "To whom it may concern" or "Dear Title".
"Dear Sir," is all you need to use.
To address a gender-neutral individual in a professional email, you can use "Dear First Name Last Name" or "Dear Job Title" instead of "Dear Sir/Madam."
Madam is appropriate only when you know the recipient is a female but her name is not known.If you know that the recipient is a woman and you know her last name, use the term Ms. The marital status of the recipient is not appropriate and is irrelevant.If you are making a generic response when you are not sure who will receive it, then you Dear Sir/Madam or Dear Sir or Madam.