I am using latest Windows Thunderbird 68.11.0 and dovecot 2.3.10.1_2 with FreeBSD 12.1-RELEASE-p8. Whenever I enable dovecot IPv6 and I try to login I get auth failed. Aug 09 08:36:11 imap-login: Info: Disconnected: Inactivity (auth failed, 2 attempts in 180 secs): user=<user at domain.com>, method=CRAM-MD5, rip=1:2:3:4::5, lip=1:2:3:6::7, TLS, session=<HZeFLGusb8IgAQZ8LNQAEgAAAAAAAAAC> Switching dovecot back to IPv4 only (listen = *) starts to work as expected. Roundcube seems to also have the same problem whenever dovecot IPv6 is enabled.
> On 09/08/2020 09:15 Lefteris Tsintjelis <lefty at spes.gr> wrote: > > > I am using latest Windows Thunderbird 68.11.0 and dovecot 2.3.10.1_2 > with FreeBSD 12.1-RELEASE-p8. Whenever I enable dovecot IPv6 and I try > to login I get auth failed. > > Aug 09 08:36:11 imap-login: Info: Disconnected: Inactivity (auth failed, > 2 attempts in 180 secs): user=<user at domain.com>, method=CRAM-MD5, > rip=1:2:3:4::5, lip=1:2:3:6::7, TLS, > session=<HZeFLGusb8IgAQZ8LNQAEgAAAAAAAAAC> > > Switching dovecot back to IPv4 only (listen = *) starts to work as > expected. Roundcube seems to also have the same problem whenever dovecot > IPv6 is enabled.Are you intentionally using CRAM-MD5 to authenticate? Aki
On 9/8/2020 9:51, Aki Tuomi wrote:> >> On 09/08/2020 09:15 Lefteris Tsintjelis <lefty at spes.gr> wrote: >> >> >> I am using latest Windows Thunderbird 68.11.0 and dovecot 2.3.10.1_2 >> with FreeBSD 12.1-RELEASE-p8. Whenever I enable dovecot IPv6 and I try >> to login I get auth failed. >> >> Aug 09 08:36:11 imap-login: Info: Disconnected: Inactivity (auth failed, >> 2 attempts in 180 secs): user=<user at domain.com>, method=CRAM-MD5, >> rip=1:2:3:4::5, lip=1:2:3:6::7, TLS, >> session=<HZeFLGusb8IgAQZ8LNQAEgAAAAAAAAAC> >> >> Switching dovecot back to IPv4 only (listen = *) starts to work as >> expected. Roundcube seems to also have the same problem whenever dovecot >> IPv6 is enabled. > > Are you intentionally using CRAM-MD5 to authenticate?Yes, but I have already tried plain with same results.