zefflyn
Registered. User.
I need some ideas for implementing this uber-restrictive mailserver at my company.
Some background: CEO doesn't want to buy Exchange. We have basically 3 user groups: lusers, their team leads, and the technology group + executive staff.
The goal is: Execs don't want lusers to e-mail each other or anyone outside the company. Lusers can only e-mail people in the company who are not lusers. Lusers are also prohibited from receiving e-mail from anyone outside the company. Summary: lusers can only send mail to and receive from their leads or execs or techs.
The hitch is: non-lusers are on Google Apps. We have 3 GA domains, depending on which corporate identity the employee uses.
I'd like to build a Linux mailserver with Postfix, and have it prevent local delivery between users, and only relay to and from specified users at the two GA domains. But even something like a LAMP forum package, or RT would just about fit the bill, if the forums could be configured to prevent the lusers from reading each others' posts.
I looked at Zimbra, which is built on Postfix, and would work great if it could be configured restrictively.
Any tips? I'm reading Postfix documentation to see if its directives can do this. There's only 60 lusers and 35 non-lusers, so having to manually maintain access lists isn't a huge deal.
Some background: CEO doesn't want to buy Exchange. We have basically 3 user groups: lusers, their team leads, and the technology group + executive staff.
The goal is: Execs don't want lusers to e-mail each other or anyone outside the company. Lusers can only e-mail people in the company who are not lusers. Lusers are also prohibited from receiving e-mail from anyone outside the company. Summary: lusers can only send mail to and receive from their leads or execs or techs.
The hitch is: non-lusers are on Google Apps. We have 3 GA domains, depending on which corporate identity the employee uses.
I'd like to build a Linux mailserver with Postfix, and have it prevent local delivery between users, and only relay to and from specified users at the two GA domains. But even something like a LAMP forum package, or RT would just about fit the bill, if the forums could be configured to prevent the lusers from reading each others' posts.
I looked at Zimbra, which is built on Postfix, and would work great if it could be configured restrictively.
Any tips? I'm reading Postfix documentation to see if its directives can do this. There's only 60 lusers and 35 non-lusers, so having to manually maintain access lists isn't a huge deal.
