How do I send emails to multiple addresses?

What's the maximum number of different emails we can send in 24 hours, and to how many addresses each time?

• What is the maximum number of different emails we can send in a 24 hours period, and to how many different addressees each time (using the "CC" or "BCC" feature)? So let's suppose I have to send an average of 75 emails every day, each time to 50-500 different people (but the average would be around 100). Can I do it using yahoo email?

• Answer:

  I don't really know that's a lot messages:)