GMX freemail IMAP

S0 n1c3,
found out, that, if you have free GMX mail, you can use imap Protocol Server.
for Mac:
  • create new Mailbox, use a wrong password.
  • After failing the test, select on the next screen the imap protocol and change the imap server to “” and user your correct password.
  • voilà! now your email read status & deleted emails will be in sync if you set up the imap mailbox on every device.