How to enable LDAP authentication for schema SSHA384

Ralph Seichter ralph at
Sun Nov 7 13:35:49 UTC 2021

While using LDAP-based authentication, I have come across the message

  auth: Error: [...] Unknown scheme SSHA384

Based on the docs at [1] I use the packages provided for
Ubuntu 20.04 LTS which, as you can see, are not yet documented in the
HTML page, put are available via [2]. Specifically, I used

  apt-get install dovecot-ldap dovecot-sqlite

to install Dovecot. What else is needed beyond the two listed packages
in order to enable support for SSHA384 password hashes in Dovecot? Am I
perhaps missing some required configuration parameter? Your help is



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