Way to write vhost for same subdomain across multiple domains?

Question

I've got several domains setup in /etc/apache2/sites-enabled:

domain1.com
domain2.com
domain3.com

I need to setup webmail.domain*.com for each one. I can do this with individual vhost files for each, but is there a way to write a wildcard vhost to be caught by all domains?

Also, the same directory should be served by all webmail.*.com requests.

Answer 1

Despite my mean~ness, check out Apache's vhosts documentation looks like the answer is not. You need a FQDN, not a globbing character.

Answer 2

ServerAlias allows wildcards

Answer 3

Ah, here's what worked for me:

<VirtualHost *:80>
    ServerName webmail.domain.com
    ServerAlias webmail.*
    DocumentRoot /path/to/webmail
    UseCanonicalName Off
</VirtualHost>