Install libsasl2-modules by entering the following commands in the terminal:
sudo apt update sudo apt install libsasl2-modules
Description:
Cyrus SASL - pluggable authentication modules
This is the Cyrus SASL API implementation, version 2.1. See package libsasl2-2 and RFC 2222 for more information. . This package provides the following SASL modules: LOGIN, PLAIN, ANONYMOUS, NTLM, CRAM-MD5, and DIGEST-MD5 (with DES support).
Homepage: https://www.cyrusimap.org/
Version: 2.1.27~101-g0780600+dfsg-3ubuntu2
Section: devel