hi all! Please let me ask this...

i got two servers (virtual machines),one as web at 192.168.0.10 and the other as mail (running zimbra) at 192.168.0.20.

got a domain name like domain.gr for my website and i also use it for mails in zimbra.
Everything goes to my router (static ip) and then i forward it to my severs.
I also use virtualmin to administer the web server.

Here is what i need:
I want to redirect mail.domain.gr (that is registered in web's BIND as a subdomain at 0.10) to my mail that runs at 192.168.0.20:8080,
so my visitors will be able to hit mail.domain.gr instead of mail.domain.gr:8080 to use the web based mail....

got any ideas? thanks a lot for any helpful answers!

BIND (DNS) doesn't deal with ports - it deals with names and IPs.

Therefore you can't tell it to use mail.domain.gr for two different servers on two different ports.

What you might want to consider instead is to setup a new record called "webmail.domain.gr" and point that to the other server. Tell users to use that to get to the one where the web mail is.