How to block external webmail access

[cwagner]

I have searched the forum and haven't found a way to disables someones external account access. I would like to make it so certain users aren't able to have access to their email accounts externally. Thanks

[bdial]

What do you mean externally? you want to make it so people can only access the zimbra web interface from your local network? This is more of a firewall thing.

[cwagner]

Yeah, I don't want certain people to be able to access the webmail client externally. I don't want it for everyone, only certain people.

[bdial]

I don't think this can be done and is really beyond the scope of zimbra. You would need something like the web portal feature of the cisco ASA security device.

[cwagner]

ok thanks, Does anyone else maybe know how to do this with postfix or any other way?