Is "Hi Sam." a full sentence? When addressing multiple people in an email- do I say "Hi Bob; Hi Sam; Hi Tom:"?

Question

are semicolons most appropriate?

If you can give me the best way to address one person, two people, more than 3 people, and hundreds of people, that would be much appreciated!

e.g.

Hi ___,

Hi ____ and _____,

Hi _____ et al.,

Greetings,

Answer 1

hi everybody whats up.

or hi everyone

Answer 2

Hi, Sam.  (it needs the comma)

Hi, Sam and Bob

Hi, All  

Answer 3

First of all, it's imporatnt to know whether the message is formal or informal.

For formal emails, you must use a colon and avoid the use of hi.

Dear Bob:

For informal emails, you should use a comma. (Dear or hi)

If you have multiple recipients, the best way should be Dear all (formal)

and Hi all or Hi folks or Hello everyone (informal).

Answer 4

Hi all