Hi. I&#039;m in the planning stage of creating an email application (for sending and receiving emails, like yahoo or hotmail). I will build it with ASP, and I&#039;d like to know if there are any common problems that I should be aware of with an application that would use POP3 mail. I&#039;ve heard that problems can arise when too many emails are being stored in the POP3 account... is this true? If so, how many is too many? Do big webmail sites like yahoo use POP3 mail, or do they use another format?<BR><BR>If anyone knows of a good resource for building your own webmail app, please let me know... I&#039;d like to scope out the situation BEFORE I begin building!<BR><BR>Thanks!<BR>Corey