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So 3.x is usually faster than 2.x, but sometimes slower than 1.x. Which makes sense, again due to the added features in 2.x and 3.x.

These tests do not take into account the multi-server capability introduced in 3.00.

Also note that these speeds are only measuring the time it takes to get from Mail::Bulkmail to your SMTP relay. There are no
measurements reflecting how long it may take your SMTP relay to send the data on to the recipients on your list.

=item Am I going to see speeds that fast?

Maybe, maybe not.  It depends on how busy your SMTP server is.  If you have a relatively unused SMTP server with a fair amount
of horsepower and a fast connection, you can easily get these speeds or beyond.  If you have a relatively busy and/or low powered
SMTP server or slow connections, you're not going to reach speeds that fast.

=item How much faster will Mail::Bulkmail be than my current system?

This is a very tough question to answer, since it depends highly upon what your current system is.  For the sake of argument,
let's assume that for your current system, you open an SMTP connection to your server, send a message, and close the connection.
And then repeat.  Open, send, close, etc.

Mail::Bulkmail will I<always> be faster than this approach since it opens one SMTP connection and sends every single message across
on that one connection.  How much faster depends on how busy your server is as well as the size of your list. The connection will
only be closed if you have an error or if you reach the max number of messages to send in a given server connection.

Lets assume (for simplicity's sake) that you have a list of 100,000 people.  We'll also assume that you have a pretty busy
SMTP server and it takes (on average) 25 seconds for the server to respond to a connection request.  We're making 100,000
connection requests (with your old system).  That means 100,000 x 25 seconds = almost 29 days waiting just to make connections
to the server!  Mail::Bulkmail makes one connection, takes 25 seconds for it, and ends up being 100,000x faster!

But, now lets assume that you have a very unbusy SMTP server and it responds to connection requests in .003 seconds.  We're making
100,000 connection requests.  That means 100,000 x .0003 seconds = about 5 minutes waiting to make connections to the server.
Mail::Bulkmail makes on connection, takes .0003 seconds for it, and ends up only being 1666x faster.  But, even though being
1,666 times faster sounds impressive, the world won't stop spinning on its axis if you use your old system and take up an extra
5 minutes.

And this doesn't even begin to take into account systems that don't open and close SMTP connections for each message.

This also doesn't take into account the load balancing between multiple SMTP relays that 3.00 can perform.

In short, there's no way for me to tell how much faster (if at all) it'll be. Try it and find out.