DeWillem78
New Pleskian
- Server operating system version
- AlmaLinux 8.7 (Stone Smilodon)
- Plesk version and microupdate number
- Plesk Obsidian Version 18.0.48, last updated on Dec 9, 2022 10:14 AM
Hi!
Because I was looking forward to using ActiveSync on my Plesk server, I purchased a license for Premium Email and installed the addon. At first I was unable to log into Horde with username/password combinations that worked perfectly well before. Because Premium Email only works with Roundcube, I switched to Roundcube and then started getting 500 Internal Server Errors on webmail. IMAP(S) also doesn't work anymore. Uninstalling Horde changed nothing.
The server is running AlmaLinux 8.7 with all software up-to-date. PHP 7.4 and 8.1 are installed and listed in php_versions.json. I installed PHP 7.3 and 8.0 with the same result. I tried the following with no improvement:
plesk bin repair --restore-vhosts-permissions
plesk bin repair --update-vhosts-structure
plesk repair web
SSL check with OpenSSL works but doesn't show IMAP information as mentioned in the support article.
support.plesk.com
As for webmail in /var/log/messages I see this:
Dec 11 10:57:18 khonsu cgi_wrapper[48573]: can not find appropriate version of php ~ `fastcgi' in `/etc/psa/php_versions.json'
When trying to connect to IMAP, Thunderbird will show a cannot connect error. In /var/log/maillog I see:
Dec 11 10:36:38 khonsu dovecot[4309]: imap-login: Disconnected: Connection closed: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol (disconnected bef
ore auth was ready, waited 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session
=<rPCbH4rvkb5/AAAB>
And in /var/log/messages:
Dec 11 11:15:55 khonsu guam[850]: 11:15:55.483 [error] gen_fsm <0.3733.0> in state disconnected terminated with reason: no match of right hand value {{error,closed},true,<0.3733.0>,{[],[]}} in eimap:disconnected/2 line 140
Dec 11 11:15:55 khonsu guam[850]: 11:15:55.484 [error] CRASH REPORT Process <0.3733.0> with 0 neighbours exited with reason: no match of right hand value {{error,closed},true,<0.3733.0>,{[],[]}} in eimap:disconnected/2 line 140 in gen_fsm:terminate/8 line 623
What should I try next to get people to access their mailboxes again?
Cheers, Willem
Because I was looking forward to using ActiveSync on my Plesk server, I purchased a license for Premium Email and installed the addon. At first I was unable to log into Horde with username/password combinations that worked perfectly well before. Because Premium Email only works with Roundcube, I switched to Roundcube and then started getting 500 Internal Server Errors on webmail. IMAP(S) also doesn't work anymore. Uninstalling Horde changed nothing.
The server is running AlmaLinux 8.7 with all software up-to-date. PHP 7.4 and 8.1 are installed and listed in php_versions.json. I installed PHP 7.3 and 8.0 with the same result. I tried the following with no improvement:
plesk bin repair --restore-vhosts-permissions
plesk bin repair --update-vhosts-structure
plesk repair web
SSL check with OpenSSL works but doesn't show IMAP information as mentioned in the support article.

How to verify that SSL for IMAP/POP3/SMTP works and a proper SSL certificate is in use
Applicable to: Plesk for Linux Question How to verify that SSL for IMAP/POP3/SMTP works and a proper certificate is installed? Answer Using online checkers Check SSL using online tools: SSL C...
As for webmail in /var/log/messages I see this:
Dec 11 10:57:18 khonsu cgi_wrapper[48573]: can not find appropriate version of php ~ `fastcgi' in `/etc/psa/php_versions.json'
When trying to connect to IMAP, Thunderbird will show a cannot connect error. In /var/log/maillog I see:
Dec 11 10:36:38 khonsu dovecot[4309]: imap-login: Disconnected: Connection closed: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol (disconnected bef
ore auth was ready, waited 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session
=<rPCbH4rvkb5/AAAB>
And in /var/log/messages:
Dec 11 11:15:55 khonsu guam[850]: 11:15:55.483 [error] gen_fsm <0.3733.0> in state disconnected terminated with reason: no match of right hand value {{error,closed},true,<0.3733.0>,{[],[]}} in eimap:disconnected/2 line 140
Dec 11 11:15:55 khonsu guam[850]: 11:15:55.484 [error] CRASH REPORT Process <0.3733.0> with 0 neighbours exited with reason: no match of right hand value {{error,closed},true,<0.3733.0>,{[],[]}} in eimap:disconnected/2 line 140 in gen_fsm:terminate/8 line 623
What should I try next to get people to access their mailboxes again?
Cheers, Willem