3rd TW week project in .NET basics module

As a customer I would like to check my mails in a mail client you deliver me.

• I would like to have pop/imap protocol support for my gmail account
• I would like to have automatic sync periodically
• I would like to have backup and restore functions for my mails and my configuration as well
• I would like to write and send e-mails

• configuration saved permanently for my gmail account (no need to re-enter e-mail address and password again)
• e-mails are received
• new mails can be sent
• mails backed up to my computer
• mail backup can be restored
• periodically checked server for new mails
• searching in mails with regex