POP3 to IMAP
I have been using pop3 and download all my mail into my mail client. So no email is left on the mail server. The mail server is ISPConfig 2.2.32. Now I want to switch over to IMAP but how do I sync the existing mail in my mail client to the server? If possible will all the folders be intact? If that won't happen then how do I get my mail back into the server?
Thanks in advance.