auth default {
# Space separated list of wanted authentication mechanisms:
# plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi
# NOTE: See also disable_plaintext_auth setting.
mechanisms = plain cram-md5
}
パスワードファイル指定
passdb passwd-file {
# Path for passwd-file
args = /etc/dovecot/cram-md5.pwd
}
あとは↑で指定した/etc/dovecot/cram-md5.pwdを作る
# dovecotpw
Enter new password: password
Retype new password: password
{CRAM-MD5}26b633ec8bf9dd526293c5897400bddeef9299fad
↑で出たものを参考にし、/etc/dovecot/cram-md5.pwdを作成
usename:{CRAM-MD5}26b633ec8bf9dd526293c5897400bddeef9299fad
参考リンク
公式Wiki