Sending multiple messages on Ebay?

Basically I want to message as many people as possible on ebay with offers. What would you suggest is the best way of doing this?
The only way I know is to have multiple ebay accounts.

How many messages can you send a day with a normal account?

How many messages can you send a day with a new account?

Would I be flagged if I sent exactly the same message to users?

Any other information or tips would be greatly appreciated. Thank you

Even i want to know this...