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Sendmail access.db question

Hello. I've got a request from one of my company's subsidiaries to block all incoming and outgoing mail for a group of users. I've read up some guides on access.db and I know how to do that, but now they want to allow these users to receive emails from a few select domains, and block the rest.

To summarize:

1) Block all incoming and outgoing email to users in team A, except mail from gooddomain.com.
2) All other users can receive and send mail from/to any domain.

How do I do that?

Hi and welcome to LQ

For the incoming you'll need procmail, that comes with most distros. Create or edit /etc/procmailrc (if teamA has a homedir it's better to use ~/.procmailrc) and use the following:

Code:

:0

* ! ^From:.*gooddomain.com

To: teamA@mydomain.com

/dev/null

If you use ~/.procmailrc the line "To: ..." is not needed

For the outgoing, edit /etc/mail/access and use

Code:

From:teamA@mydaomain.com REJECT

The run

Code:

makemap hash /etc/mail/access < /etc/mail/access

Regards

Thanks bathory. I'll give it a try.