Access webmail on all domains

[mehulved]

Hi,
I have configured ISPconfig2 on our server. I can get webmail working on the initially configured domain. But, all the domains that have been configured in ISPconfig cannot seem to access the webmail.
e.g. The initial domain is www.example.com so http://www.example.com/webmail works fine.
But, our clients want http://www.theirdomain.com/webmail this returns a blank page.

access.log shows the following line

"GET /webmail/ HTTP/1.1" 200

Also, I get this error while restarting apache

[Mon Jun 08 08:45:14 2009] [warn] The Alias directive in /etc/httpd/conf.d/squirrelmail.conf at line 5 will probably never match because it overlaps an earlier Alias.
[Mon Jun 08 08:45:14 2009] [warn] The Alias directive in /etc/httpd/conf.d/phpmyadmin.conf at line 11 will probably never match because it overlaps an earlier Alias.
[Mon Jun 08 08:45:14 2009] [warn] The Alias directive in /etc/httpd/conf.d/phpmyadmin.conf at line 12 will probably never match because it overlaps an earlier Alias.
[Mon Jun 08 08:45:14 2009] [warn] The Alias directive in /etc/httpd/conf.d/phpmyadmin.conf at line 13 will probably never match because it overlaps an earlier Alias.

[till]

You can not access webmail like this because you dont have a directory webmail in verrty website were you installed squirrelmail. Instead of that, install the squirrelmail package for ispconfig 2 and then you can reach squirrelmail like this:

https://www.anydomain.com:81/squirrelmail

or by the link in the controlpanel.

[mehulved]

So, there isn't anyway that we could do that? BTW, I haven't installed the squirrelmail package. I installed squirrelmail from the repositories. So, I don't think it will be available on port 81 or show up in control panel.

[Hans]

If your webmail installation is for example within http://www.example.com/squirrelmail/
You can add a redirect rule to your /etc/apache2/apache2.conf like this:
Redirect /webmail http://www.example.com/squirrelmail/

Afterwards restart Apache2

Now and from every vhost you can acccess webmail via http://yourwebsite.com/webmail.