Fabio,

Okay, it's patched.

The new file is dovecot-2.3.11.3-13 in the testing repo with all the associated packages. We cannot, from here, go on to 2.3.13 because that version no longer supports vpopmail driver.

command will be this:

# yum --enablerepo=qmt-testing update dovecot

I'd wait maybe a day at which time all the qt repos are updated,

or you will find the file on my site at this link: http://repo.whitehorsetc.com/7/testing/x86_64/

from which you can download it and install manually.

Eventually, we will all go this route: https://www.qmailtoaster.org/manydom.html

and all dnf (yum) settings can be modified so that all rpms will come from dovecot.

Eric


On 1/31/2022 7:01 AM, Eric Broch wrote:

Okay, I'll compile a new version

On 1/30/2022 10:28 PM, Fabio Mecchia wrote:
Hi Eric,
I have already searched the dovecot mailing list and found a few people who complain about this error exclusively with dovecot version 2.3.11.3 It seems a bug has been introduced on the behavior of the AUTH mechanism. On the mailing list they recommend patching the sources or upgrading to a later version.  That's why I was asking how to upgrade.

Link <https://dovecot.markmail.org/search/?q=tried%20to%20use%20unsupported%20auth%20mechanism#query:tried%20to%20use%20unsupported%20auth%20mechanism+page:1+mid:bsmh73cxxpqkiza6+state:results> to the dovecot mailing list.


Fabio

Il giorno lun 31 gen 2022 alle ore 01:57 Eric Broch <ebr...@whitehorsetc.com> ha scritto:

    hmmm...

    pretty much the same I have on my toaster.

    This is what is confusing:

    "-ERR [AUTH] Unsupported authentication method" and " method=USER"

    I've seen failures with 'method=digest-md5' or 'method=cram-md5'
    but never user.

    Can you ask about this on the Dovecot mailing list and let us
    know what they say?


    On 1/30/2022 11:48 AM, Fabio Mecchia wrote:
    Hi,
    this is the output :

    dovecot-2.3.11.3-12.qt.el7.x86_64
    ripmime-1.4.0.10-0.qt.el7.x86_64
    vpopmail-5.4.33-1.qt.el7.x86_64
    ezmlm-cgi-0.53.324-0.qt.el7.x86_64
    maildrop-2.9.1-2.qt.el7.x86_64
    mailman-debuginfo-2.1.12-20.qt.el7.x86_64
    dspam-libs-3.10.2-13.qt.el7.x86_64
    control-panel-0.5.1-1.qt.el7.x86_64
    qmt-release-1-7.qt.el7.noarch
    autorespond-2.0.5-1.qt.el7.x86_64
    dovecot-pigeonhole-2.3.11.3-12.qt.el7.x86_64
    dspam-3.10.2-13.qt.el7.x86_64
    mailman-2.1.12-20.qt.el7.x86_64
    simscan-1.4.0-1.qt.el7.x86_64
    ezmlm-0.53.324-0.qt.el7.x86_64
    maildrop-devel-2.9.1-2.qt.el7.x86_64
    qmailadmin-1.2.16-3.2.qt.el7.x86_64
    dspam-mysql-3.10.2-13.qt.el7.x86_64
    qmailmrtg-4.2-3.qt.el7.x86_64
    daemontools-0.76-0.qt.el7.x86_64
    vqadmin-2.3.7-1.qt.el7.x86_64
    spamdyke-5.0.1-0.qt.el7.x86_64
    libsrs2-1.0.18-0.qt.el7.x86_64
    ucspi-tcp-0.88-0.qt.el7.x86_64
    libsrs2-devel-1.0.18-0.qt.el7.x86_64
    dspam-client-3.10.2-13.qt.el7.x86_64
    qmail-1.03-3.3.1.qt.el7.x86_64
    isoqlog-2.2.1-2.qt.el7.x86_64
    libdomainkeys-devel-0.69-1.qt.el7.x86_64

    
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    Il giorno dom 30 gen 2022 alle ore 19:37 Eric Broch
    <ebr...@whitehorsetc.com> ha scritto:

        What are you running on your machine?

        # rpm -qa | grep \\.qt

        report output back to the mailing list

        On 1/30/2022 10:49 AM, Fabio Mecchia wrote:
        So how can I upgrade dovecot?

        Il dom 30 gen 2022, 18:26 Eric Broch
        <ebr...@whitehorsetc.com> ha scritto:

            The dovecot version we (qt) compile has the vpopmail
            driver in it, the dovecot repos don't have that driver
            compiled in. If you use the many domain version of
            qmail toaster that it would be okay, but using the
            stock version then, no, you would run into trouble
            using the dovecot repo versions.


            On 1/30/2022 9:41 AM, Fabio Mecchia wrote:
            Hi,
            still having problems, it's safe to update dovecot
            with this guide or I  risk to break something in
            Toaster setup?

            
https://doc.dovecot.org/installation_guide/dovecot_community_repositories/centos_packages/



            
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            Il gio 27 gen 2022, 17:14 Fabio Mecchia
            <ktf4...@gmail.com> ha scritto:

                In my /etc/dovecot/toaster.conf I Have:
                auth_mechanisms = plain login digest-md5 cram-md5

                while the /etc/dovecot/conf.d/10-ssl.conf is the
                same as yours  with :
                ssl = required

                I've found this on the dovecot mailing list :
                https://dovecot.org/pipermail/dovecot/2020-August/119760.html


                Regards
                 Fabio



                Il giorno gio 27 gen 2022 alle ore 15:18 Eric
                Broch <ebr...@whitehorsetc.com> ha scritto:

                    This is my /etc/dovecot/toaster.conf dovecot
                    authorization mechanisms:

                    auth_mechanisms = plain login

                    On 1/27/2022 3:16 AM, Fabio Mecchia wrote:
                    Hi everyone,
                     I have been having a weird problem
                    connecting pop 3 to my corporate server from
                    Outlook and Thunderbird for about two weeks.
                    When the client tries to connect to the
                    server, I got this error message "-ERR [AUTH]
                    Unsupported authentication method" and in the
                    Dovecot logs I found errors like "pop3-login:
                    Info: Disconnected (tried to use unsupported
                    auth mechanism): user=<x...@xxxxxx.it>,
                    method=USER, rip=xxx.xxx.xxx.xxx,
                    lip=xxx.xxx.xxx.xxx, TLS,
                    session=<bXG42jTVxNtc3/SS>
                    " .
                    The strange thing is that the same client
                    checks multiple boxes on the same domain and
                    not all of them give an error, also the error
                    occurs randomly, maybe for half a day it is
                    impossible to download the mail and then
                    suddenly it works for a couple of hours.
                    Using the imap protocol there are no problems.
                    When the clients manage to connect I find
                    this in the Dovecot logs "pop3-login: Info:
                    Login: user=<x...@xxxxxx.it>,
                    method=DIGEST-MD5, rip=xxx.xxx.xxx.xxx,
                    lip=xxx.xxx.xxx.xxx, mpid=5510, TLS,
                    session=<+0htGDnVWPdc3/SS>", I don't know why
                    on the same client without changing anything
                    the method switch from USER to DIGEST-MD5
                    The server is up to date, dovecot version
                    is 2.3.11.3


                    Any suggestions are welcome

                    Fabio Mecchia

                    
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