Invalid password in passdb: Not a valid MD5-CRYPT or PLAIN-MD5 password

[Ultramedia Libertad]

When using CRYPT to encrypt the password, you must put the following in
dovecot-sql.conf.ext

default_pass_scheme = CRYPT

I hope this can help more people, in addition to leave you as I did my
query:

password_query = \
  SELECT password \
  FROM users WHERE login = '%u


-- 
editor de sueños