Mac OS X 10.0 Mail: Requires Cleartext Authentication on IMAP Server
The application Mail cannot authenticate when connecting to an IMAP server if cleartext authentication is disabled.
Symptom
You cannot get email from an IMAP server.
Solution
Choose one of these two options:
Client - Use POP3 mail service instead, if available.
Network Administrator - Enable cleartext authentication on the IMAP server.
Published Date: Feb 17, 2012
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