Roundcube inaccessible when LiteSpeed is running: Connection to storage server failed

Vladimir Levchuk

Updated February 12, 2025 11:43

Plesk Obsidian for Linux ext: litespeed roundcube

Symptoms

The following error shows when trying to access a mail account in Roundcube:

PLESK_INFO: Connection to storage server failed.

The dovecot service is running.
There are no errors in the /var/log/plesk-roundcube/errors file.
There are no related errors in the /var/log/maillog file.
The /usr/share/psa-roundcube/config/config.inc.php file is the default one.
Errors like below are reported to /var/log/httpd/error_log file:

...
[NOTICE] [1872] [T0] [203.0.113.2:61471-H3:BB57493EA70916C9-8#APVH_webmail.example.com:443] [STDERR] PHP Warning:  stream_socket_client(): php_network_getaddresses: getaddrinfo for localhost failed: No address associated with hostname in /usr/share/psa-roundcube/program/lib/Roundcube/rcube_imap_generic.php on line 1059\n 
[NOTICE] [1872] [T0] [203.0.113.2:61471-H3:BB57493EA70916C9-8#APVH_webmail.example.com:443] [STDERR] PHP Warning:  stream_socket_client(): Unable to connect to ssl://localhost:993 (php_network_getaddresses: getaddrinfo for localhost failed: No address associated with hostname) in /usr/share/psa-roundcube/program/lib/Roundcube/rcube_imap_generic.php on line 1059\n 
[NOTICE] [1872] [T0] [203.0.113.2:61471-H3:BB57493EA70916C9-8#APVH_webmail.example.com:443] [STDERR] PHP Warning:  file_put_contents(/var/log/plesk-roundcube//errors): Failed to open stream: No such file or directory in /usr/share/psa-roundcube/program/lib/Roundcube/rcube.php on line 1380\n 
[NOTICE] [1872] [T0] [203.0.113.2:61471-H3:BB57493EA70916C9-8#APVH_webmail.example.com:443] [STDERR] PHP Warning:  Login failed for john_doe@example.com against localhost from 203.0.113.2. Could not connect to ssl://localhost:993: php_network_getaddresses: getaddrinfo for localhost failed: No address associated with hostname in /usr/share/psa-roundcube/program/lib/Roundcube/rcube.php on line 1503\n
...

LiteSpeed is used as web-server.

Cause

Unclear issue on LiteSpeed PHP side.

Resolution

Contact LiteSpeed support for further investigation of the issue.

Workaround 1 - Switch from LiteSpeed to Apache:

Log into Plesk
Go to Extensions > LiteSpeed Extension > Open > Switch to Apache

Workaround 2 - Reconfigure Roundcube to connect via 127.0.0.1 IP address:

Connect to the server via SSH
Create /usr/share/psa-roundcube/config/config.local.php file:

# touch /usr/share/psa-roundcube/config/config.local.php
Set the correct permissions/ownership for the file:

# chown root:roundcube_sysgroup /usr/share/psa-roundcube/config/config.local.php

# chmod 640 /usr/share/psa-roundcube/config/config.local.php
Add the following content into /usr/share/psa-roundcube/config/config.local.php file:
```
<?php
$config['db_dsnw'] = 'mysql://roundcube:password@127.0.0.1/roundcubemail';
$config['imap_host'] = 'ssl://127.0.0.1:993';
$config['smtp_host'] = 'ssl://127.0.0.1:465';
```
Note: the password for db_dsnw should be copied from /usr/share/psa-roundcube/config/config.inc.php
Using vi (or other editor), open /usr/share/psa-roundcube/config/config.inc.php and comment out db_dsnw variable.