Re: Dovecot with Postfix "no SASL authentication mechanisms"

2023-09-04 Thread jeremy ardley via dovecot
On 4/9/23 14:03, Willy Manga wrote: "fatal: no SASL authentication mechanisms" -- try setting in dovecot auth_debug = yes auth_verbose = yes and then restart both services and check logs when the problem occurs. Also, be aware that dovecot usually 'subcontracts' the auth process to pam,

Re: [SOLVED] Dovecot with Postfix "no SASL authentication mechanisms"

2023-09-05 Thread jeremy ardley via dovecot
On 5/9/23 14:31, Michel Verdier wrote: dovecot with PAM needs plaintext method. So if postfix disable it they can't share a method. You have to be careful to require any plaintext client password to travel over a TLS secured connection smtpd_tls_auth_only = yes More generally, it's good

Re: Roundcube

2023-09-07 Thread jeremy ardley via dovecot
On 8/9/23 07:38, dovecot--- via dovecot wrote: Roundcube does not have direct file access to the emails even on the same server. Roundcube opens a connection to dovecot, supplies the user/pass/login credentials to dovecot, and dovecot fetches the email stores and serves it to roundcube.

Re: Roundcube

2023-09-07 Thread jeremy ardley via dovecot
On 8/9/23 05:00, joe a wrote: Any known issues with installing/running roundcube and dovecot on the same server? There is a generic issue with doing this. That is if you have roundcube (or any other web mail interface) on the same server as dovecot, a breach of the web interface could be

Re: Roundcube

2023-09-08 Thread jeremy ardley via dovecot
On 8/9/23 16:24, Marc wrote: Since when does a hacked website gain root? A web search on 'linux  web server exploits that gain root' will give many examples. Security design by first principle assumes that an attacker will gain root access. Best practise is to limit the damage that can

Re: Minimum configuration for Dovecot SASL only?

2023-11-05 Thread jeremy ardley via dovecot
On 6/11/23 04:36, jeremy ardley via dovecot wrote: You should be able to use ssh with port forwarding to establish a TLS connection between devices. Postfix would see a remote SASL service as a local service. An alternative and possibly more reliable and easily configured mechanism would

Re: Minimum configuration for Dovecot SASL only?

2023-11-05 Thread jeremy ardley via dovecot
On 6/11/23 03:25, Nick Lockheart wrote: I can't use the real Dovecot IMAP server for auth, because it runs on a separate server, and Postfix does not support TLS connections for SASL. -- You should be able to use ssh with port forwarding to establish a TLS connection between devices. Postfix

Fwd: dovecot and postfix, authentication issue

2023-07-06 Thread jeremy ardley via dovecot
On 6/7/23 20:49, joe a wrote: On 7/6/2023 8:12 AM, jeremy ardley via dovecot wrote: On 6/7/23 19:15, joe a wrote: If your example was meant to show the correct way, I cannot see any difference between that and what my posted config shows other than the sequential (contiguous?) in your

Re: dovecot and postfix, authentication issue

2023-07-06 Thread jeremy ardley via dovecot
On 6/7/23 19:15, joe a wrote: If your example was meant to show the correct way, I cannot see any difference between that and what my posted config shows other than the sequential (contiguous?) in your example. Perhaps try the different configuration out? Or even better, stick to one

Re: dovecot and postfix, authentication issue

2023-07-05 Thread jeremy ardley via dovecot
On 6/7/23 10:17, joe a wrote: Greetings from a new dovecot user. Have setup dovecot on openSuse 15.4 with postfix as the MTA. Both are the latest version in that distribution. Simple virtual user setup using /etc/dovecot/passwd Dovecot seems to be working and all the defined users are

Re: No-novice with Dovecot, but need novice-like advice (was Dovecot cracked?!)

2023-06-08 Thread jeremy ardley via dovecot
On 9/6/23 09:17, Richard Troy wrote: However if your dovecot SASL is broken, say always permitting access with or without correct password, then there will be a problem I DID find a discrepancy: smtpd_helo_restrictions did NOT have permit_sasl_authenticated. I made the change, of course

Re: No-novice with Dovecot, but need novice-like advice (was Dovecot cracked?!)

2023-06-08 Thread jeremy ardley via dovecot
On 9/6/23 07:25, Richard Troy wrote: The relaying only started and stopped when Dovecot was turned on or off. Isn't it true that Dovecot performs an authentication function for inbound connect requests, the successful of which then may use the submission mechanism from what Postfix takes to

Re: Possible hack via doveadm

2023-05-13 Thread jeremy ardley via dovecot
On 14/5/23 09:14, Daniel L. Miller via dovecot wrote: May 12 15:45:58 cloud1 dovecot: doveadm(194.165.16.78): Error: doveadm client not compatible with this server (mixed old and new binaries?) May 13 03:44:31 cloud1 dovecot: doveadm(45.227.254.48): Error: doveadm client not compatible with

Re: Possible hack via doveadm

2023-05-14 Thread jeremy ardley via dovecot
On 14/5/23 23:29, Daniel Miller via dovecot wrote: I only allow explicit service traffic through. IMAPS, SMTPS, etc. If doveadm is communicating via the IMAP(S) ports then all I can do via firewall is block countries. Which of course I can but I'm asking about any additional hardening for

Re: How to temporarily make all mailboxes read-only for backup purposes?

2023-11-25 Thread jeremy ardley via dovecot
On 26/11/23 08:02, Steve Litt wrote: Is the remote vendor going to take the same care in preserving your data as you would? You could buy two 2TB spinning rust external hard drives for seventy bucks each, so if one gets borked you have the other. If you desire offsite, keep one in a bank safe