Atomic Sender can export and import smtp lists. From this link you can get smtp list for Atomic Sender so you do not have to figure out settings yourself.

Then open up Atomic Sender and import downloaded list. See how to do that on snapshot below:

Then register a mailbox on each smtp you see in the list. To find its registration page just google smtp address. Note that "toomuchpower" is a sample account which will not work.

Once you register replace "toomuchpower" with your ID and password. Nothing else should be changed. Keep preset speed limit settings.

Continue reading to find out more about smtp.

If it is unclear how to add smtp server into settings then please watch this video http://www.youtube.com/watch?v=e4GShQF9V0Y

In case you do not know what SMTP server to use you have several options:
1. Use SMTP server of your ISP(internet service provider).
2. Use SMTP server of your hosting(if available).
3. Use free SMTP servers like gmail.
4. Get high reputation commercial SMTP server with high or no limit. To get one please google for "Commercial SMTP server" and chose one that fits your goals best.

Please Note!
Most SMTP servers have a limit(number of emails one can send per minute/hour/day).
In case your List is not that large(up to 2000 emails) and you do not plan to make blasts every day you may consider using option 1-3 from the list above.
In case your List is much larger then that or you plan to send emails often please consider option 4 and also options 2 and 1 depending on the limit of those SMTP servers. In the option 1 it is usually possible to upgrade your ISP account to a business plan with much higher or no limit for outgoing mail.