What are your mail server names?
Please use mail.infosaic.com for incoming and outgoing mail servers.
Please note that some ISP's block 3rd party SMTP servers, and in this case you would need to use your providers.
Here's a list of providers that require you to use their SMTP mail server:
ISP Service Default/SMTP Server Name
MindSpring/smtp.mindspring.com or mail.mindspring.com
Try "mail.bellsouth.net" first. The SMTP server depends on which city you are located in, if "mail.bellsouth.net" does not work, please contact BellSouth Access Support for the correct information.