• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Issue Mail broken after Obsidian upgrade

marcussf

New Pleskian
I have upgraded to Obsidian 18.0.36 on a Debian 9.13 x64 system - which broke both postfix and dovecot / imapproxy

I was able to fix the immediate postfix issue, namely the milter service not being available. However, mail to accounts administered through Plesk are not being accepted:
Jul 1 13:28:26 myhost postfix/pipe[12142]: 147C7A51F02: to=<[email protected]>, relay=mailman, delay=0.58, delays=0.53/0.02/0/0.03, dsn=5.3.0, status=bounced (Command died with status 6: "/usr/lib/plesk-9.0/postfix-mailman". Command output: Illegal command: mydomain.com )

Dovecot does not seem to accept Plesk auth services any more:
Jul 1 13:49:47 myhost dovecot: auth: Fatal: Unknown passdb driver 'plesk'
Jul 1 13:49:47 myhost dovecot: master: Error: service(auth): command startup failed, throttling for 60.000 secs
Jul 1 13:49:47 myhost dovecot: imap-login: Disconnected: Auth process broken (disconnected before auth was ready, waited 0 secs): user=<>, rip=2001::10, lip=2001::11, TLS handshaking, session=<uOibbw7GHLcgAUC4AAADEgAAAAAAAEMA>

Consequently, imapproxyd refuses to start:
Jul 1 13:48:13 myhost in.imapproxyd[13122]: ParseBannerAndCapability: Attempting to parse capability string: * BYE Disconnected: Auth process broken
Jul 1 13:48:13 myhost in.imapproxyd[13122]: SetBannerAndCapability(): Unexpected response from IMAP server on initial connection: * BYE Disconnected: Auth process broken#015#012 -- Exiting.

'plesk repair mail' does nothing: Error messages: 0; Warnings: 0; Errors resolved: 0
 
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