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Solutions for Inner Office Email

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by justinshattuck

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I was asked a question recently about a solution available for setting up and implementing an 'inner office only' email platform.

Essentially I know there are a few options, setting up a local domain, sendmail, imap etc to only accept local requests and block outside relays etc. However, any of you know of any out-of-the-box turnkey solutions?

Essentially I have a network with 24 users, all of which are on Microsoft Windows platform and have Outlook from the Office suite.

Without setting up a server environment, say Exchange etc, what would be a solution for allowing them to send email messages to one another within the office but the mailboxes not be available from outside the network; as well as users being able to use the account to send outside the network.

Suggestions.. anyone?

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by dumphrey

http://www.deeproot.co.in/deepofix

its primarily a web interface, and while a tad basic, works just fine. It has imap and pop3 servers built in if you do not want to use a web interface, but I didn't evaluate this.

Overall is a complete self contained mail server based on Debian.

You would have to explicitly block port 25 outgoing on the server to prevent sending internet mail, and as long as your firewall has no external nat translations or dns records, it will be unaccessible from the internet, but will provide mail to local users (to its database or ldap) all day long.
Milage will vary with hardware.

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