IMAP vs POP3 - How to Email in the 21st Century

POP is bad. IMAP is good.

How do I know I'm using POP?

  • Sign 1: If I create folders on one of my devices, they are not replicated on others
  • Sign 2: If I read an email on one of my devices, I see it as unread on others
  • Sign 3: If I delete an email on one of my devices, I still see it on others