Restrict users to certain domain

Revision as of 19:47, 10 April 2008 by King0770 (talk | contribs)

Restricting users to send mails to certain domains.

This document describes how to restrict a list of users for sending emails to limited domains. Other users can send mails anywhere. Everything I am doing here as Zimbra user.

Enter following in the file “/opt/zimbra/conf/”. Make sure it is entered at the top of the file.

vi /opt/zimbra/conf/
check_sender_access hash:/opt/zimbra/postfix/conf/restricted_senders 

Enter following in "/opt/zimbra/conf/"

vi /opt/zimbra/conf/
POSTCONF    smtpd_restriction_classes      local_only
POSTCONF    local_only                                 FILE

Create a file "/opt/zimbra/conf/"

vi /opt/zimbra/conf/
check_recipient_access hash:/opt/zimbra/postfix/conf/local_domains, reject

Create a file "/opt/zimbra/postfix/conf/restricted_senders" and list all the users, whom you want to restrict. Follow this syntax:

vi /opt/zimbra/postfix/conf/restricted_senders            local_only

Create a file "/opt/zimbra/postfix/conf/local_domains" and list all the domains where "restricted users" allowed to sent mails. Please follow this syntax:

vi /opt/zimbra/postfix/conf/local_domains                     OK      OK

Run following commands:

postmap /opt/zimbra/postfix/conf/restricted_senders
postmap /opt/zimbra/postfix/conf/local_domains 
zmmtactl stop 
zmmtactl start

After these settings, all the users listed in "/opt/zimbra/postfix/conf/restricted_senders" are restricted to send mails only to domain which are defined in "/opt/zimbra/postfix/conf/local_domains", other are fully allowed to send mails anywhere. These settings will not survive Zimbra upgrades, please make sure that you backup of all these settings while performing upgrades.

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