Il 12/01/2016 08:23, Jonas Björklund ha scritto:
Hello,

Is there a way to allow only certain users on IMAP/POP3 without SSL?
Im running MySQL backend.

/Jonas

You can try to add a deny passwd-file based on the service and protocol or port (in order to determinate if users are login in clear):

passdb {
  driver = passwd-file
  args = /etc/dovecot/deny.%s.%a
  deny = yes
}

And in the file /etc/dovecot/deny.imap.143 insert all users except the allowed to login in clear.

http://wiki.dovecot.org/Authentication/RestrictAccess
http://wiki.dovecot.org/Variables

This is only a suggestion, I don't know if can works.
Let me know if you find a better way.

Ciao
--
Alessio Cecchi
Postmaster @ http://www.qboxmail.it
https://www.linkedin.com/in/alessice

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