Resolved After upgrade from Pesk 12.x webmail doesn't load

[theywill]

CentOS 6.10
Plesk Onyx Version 17.8.11 Update #18

After the upgrade from Plesk 12.x:

I have a domain with no hosting, only email accounts. This domain has been using webmail exclusively for years. After the upgrade, webmail no longer loads. Instead, you get the Plesk default page. I've tried switching between Horde and Roundcube. Neither works, default page.

I confirmed the webmail.domain.com A record is configured in the DNS.

Roundcube is working on other domains.

Any suggestions? This is an immediate issue because all branches of this business are using webmail.

 

[theywill]

The only way I've been able to get webmail working is by reinstating hosting service.

 

[Bitpalast]

It is possible that in /etc/httpd/conf.d/zz010_psa_httpd.conf the line

IncludeOptional '/etc/httpd/conf/plesk.conf.d/webmails/*.conf'

is missing. In that case, none of the webmail configuration files will be loaded as the webserver configuration. You can either try to add the line manually (if the configuration files exist for sure) or simple reconfigure all webserver configuration files, which will reconfigure zz010_psa_httpd.conf, too. As far as I remember, the only surefire way to keep the configuration in zz010_psa_httpd.conf in this case is to reconfigure all configuration files. This can easily be done by the web configuration trouble shooter extension.