I tried to migrate my mailaccount from my old IMAP-Server (cyrus on a linux box) to Xeams. So I added a user and tried the import wizard. All I get is

"Unable to import data. STARTTLS failure", if I don't check "Use SSL" and a "Unrecognized SSL Message. Plaintext connection?"

My old Server uses a Selfsigned Certificate and STARTTLS and I have no problems conncting with a Variety of Cleints (Kmail, Nina Outlook, Thunderbird).

Is there any hope to get the messages from my old server to Xeams? Is there a way to copy the messages as files?

Best regards

Thomas