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Thread: Outlook/Zarafa Gateway Imap(s) and disable_plaintext_auth = yes

  1. #1
    Senior Member
    Join Date
    Jan 2008
    Posts
    400

    Outlook/Zarafa Gateway Imap(s) and disable_plaintext_auth = yes

    Hai,


    after tuning my cipher settings i noticed the following.
    # Disable all plaintext authentications unless SSL/TLS is used
    disable_plaintext_auth = no

    so since im using only SSL in outlook for my imap, i change disable_plaintext_auth = no to yes.
    after this change im unable to login, and im getting auth popups.

    Environment:
    Debian Jessie 64bit , up2date
    zarafa 7.2.1.

    ssl settings now set in the gateway.conf

    ssl_protocols = !SSLv2 !SSLV3
    ssl_ciphers = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+S HA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+a RSA+SHA256:EECDH+aRSA+RC4:EECDH EDH+aRSA:RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!P SK:!SRP:!DSS

    # Disable all plaintext authentications unless SSL/TLS is used
    disable_plaintext_auth = no


    how is outlook set:
    Incomming imaps : port 993, type SSL.
    outgoing port 465, type SSL.

    I use postfix, port 25 geen sasl auth, sasl active on port (465(SSL) or 587(TLS)


    This looks like this bug

    Anyone any insight?

  2. #2
    Junior Member
    Join Date
    May 2014
    Posts
    19
    Hey there

    I had an issue when disabling SSLv3, couldn't connect with Thunderbird. As soon as I removed the part !SSLv3 I was able to connect again.
    Interestingly, Outlook 2010 had no issues, but also my Jolla Sailfish phone could not connect via IMAP unless I activated SSLv3

    Cheers Juri

  3. #3
    Senior Member
    Join Date
    Jan 2008
    Posts
    400
    Hai Jassonmc, for you thunderbird, you forgot to set it to TLS. and for me removing !SSLV3 is not an option.

    I got more info also. port 465 smtps isnt use anymore, and i do need to switch this to TLS (587 )

    but it still looks like it that the zarafa-gateway isnt detecting my SSL on port 993.

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