Webmail HTTPS redirection to default URL

[Labsy]

Hi,

due to more and more hacking issues I decided to force all my ZCS users to use HTTPS instead of non-secured http connection for webmail. POP3, IMAP and SMTP are already allowed only secured (SSL/TLS).

Now, REDIRECTING all webmail http to https works, but I have 300+ domains, and SSL certificate only for primary domain, not for all of them!
So REDIRECT issues a warning about non-valid SSL cert.

I would like to REDIRECT all requests for HTTP not just to HTTPS protocol, but to https://webmail.PRIMARY-domain.com (...instead of to https://webmail.USER'S-domain.com)

Any idea?

[Labsy]

If I understand correctly, I would need HTTPServer redirect all requests on port 80 to URL https://webmail.PRIMARY-domain.com:443

Is it Jetty? Or Tomcat?
If it was Apache, I'd do it with simple redirect in config. But I am not familiar with Jetty.

Suggestion welcome.

*** EDIT ***
I resolved the issue by simply setting up one website without Host Header value...meaning, that it responds to all domains, which point to this IP. And I am lucky having 3 C-classes of public IPs available, so I dedicated one to be just redirect.