Plug into possibility
Add new features or connect your favorite tools with thousands of plugins — available on all paid WordPress.com plans.
mailbox
3 plugins
Virtual MailboxVirtual Mailbox - log all outgoing emails, and allow to browse them.
MBE eShipMBE eShip, the Mail Boxes Etc.'s plugin for e-commerce platforms, functions as an integrator between your online store and the MBE's Systems
MFS MAILBOXThis Plugin is used for allowing one registered user to send mail(s) to other registered user(s).