I notice that i am unable to connect Outlook (2013) users with my Unix mail server. I have tried from a remote computer and localhost at my local network with Mail App and its working fine except with Outlook where i cannot find a way to connect it. I have also a web mail service at my mail server and this working fine too.
In my server i am using:
- Postfix
- Dovecot
- Getmail
- Server App
- Open Directory (LDAP)
- Mail password types allowed: CRAM-MD5, Digest-MD5, GSSAPI
I am getting this error when i try to connect through outlook:
Iniciating session in the reception server of mail (IMAP): Failure with general authentication. No one of those authentication methods are supported by the IMAP server (if exists) are supported by this computer.
It seems that i am having a problem with user authentication with Outlook and i dont know well how to solve it, because all my users are set to just use Open Directory.
In dovecot: auth_mechanisms = digest-md5 cram-md5 gssapi. Through telnet to port 143 i have also AUTH=DIGEST-MD5 AUTH=CRAM-MD5 AUTH=GSSAPI. I was using the same settings as i was through Mail app, login username and password, and the DNS name of this mail server through IMAP.
Is there a way to set up Outlook to login in an user password type of Open Directory?
Thanks in advance!
UPDATE1:
I have already add 'plain' for authentication for postfix and dovecot, and still nothing, same error. I believe that this is occurring because i have set my users to use an Open Directory and i cannot use other types of passwords, i am stick to digest-md5 cram-md5 gssapi.
UPDATE2:
Postfix:
smtpd_pw_server_security_options = cram-md5,digest-md5,gssapi, plain
Dovecot (10-auth.conf):
auth_mechanisms = digest-md5 cram-md5 gssapi plain
disable_plaintext_auth = no
Sill same error.
With POP3 i have an error description a bit bigger:
-ERR [AUTH] Plaintext authentication disallowed on non-secure (SSL/TLS) connections
At least with TLS, i have it activated in postfix, with CA's,
smtpd_use_tls = yes
smtpd_enforce_tls = no
smtpd_tls_CAfile = ...
smtpd_tls_key_file = ...
smtpd_tls_exclude_ciphers = SSLv2, aNULL, ADH, eNULL
smtpd_tls_ciphers = medium
tls_random_source = dev:/dev/urandom
So there is a way to enable this authentications for Outlook?