Best way to do a multithread foreach loop [closed]

Question

I have a send email method with a foreach, like this:

static void Main(string[] args)
{
   foreach(var user in GetAllUsers())
   {
      SendMail(user.Email);
   }
}

I need to improve that method. Using a multithread, because i dont want to wait the SendMail method executes each time for each user. Any sugestions to do that? Thanks

Answer 1

Try using a parallel foreach. I.e.

Parallel.ForEach(GetAllUsers(), user=>
{
  SendMail(user.Email);
});