Forgive me I am confused - Email problem

I have a roadrunner account, and I followed the directions to sync my home emails to the Droid (I am using the app included on the phone stated "email"). I always get the error "Unable to open connection to server"? Please let me know what I am doing wrong, and what I should do from here.

The Verizon rep said I could sync my home emails to the phone, but being a non-techy person I have no idea how now! I have read the threads listed here so far, but I am ignorant if one those apply to roadrunner. I am awaiting an update?

Please advise, so I may stop searching for an answer.
Thank you so much for you help.
Cassie

 

Thank you, you triggered something (checking the exact name of the pop server I have). I hadn't put the "pop or stmp" in the server section. I know it's basics but I totally forgot about that... ahhhh, I am so happy now. Now I can say the droid is PERFECT for me. Thank you for your assistance!