Note: You are currently viewing documentation for Moodle 3.9. Up-to-date documentation for the latest stable version of Moodle may be available here: IMAP authentication.

IMAP authentication

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Note: The IMAP authentication plugin has been removed in Moodle 3.4. It is still available from https://github.com/moodlehq/moodle-auth_imap.

IMAP authentication uses a mailing systems IMAP protocol to check for users accounts. This allows direct integrations with technologies such as Microsoft Exchange servers.

The available imap types correspond to the different connection, and security options used when connecting to the imap server.

The following options are supported:

imap: No encryption is used for the connection, but the IMAP server certificate is verified to be a valid certificate from a trusted certificate authority.

imapssl: SSL security is enabled, and the IMAP server certificate is verified to be a valid certificate from a trusted certificate authority.

imapcert: SSL security is enabled, but the IMAP server certificate is not verified.

imaptls: TLS security is enabled. The IMAP server certificate is verified to be a valid certificate from a trusted certificate authority. This is the most secure option.

imapnosslcert: No encryption is used for the connection, and the IMAP server certificate is not verified. This is the least secure option.