Zimbra 8.6 restrict to user sending mail to certain domain

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Zimbra 8.6 restrict to user sending mail to certain domain


How to restrict to user sending mail to certain domain. To configure on zimbra mta.







 Step 1: To add lines in file /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf as bellow:
#vi /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf
Adding lines the top as following:
check_sender_access lmdb:/opt/zimbra/postfix/conf/restricted_senders
Step 2: To add lines in file /opt/zimbra/conf/zmconfigd.cf
vim /opt/zimbra/conf/zmconfigd.cf
Adding the lines following before RESTART mta.
POSTCONF smtpd_restriction_classes local_only
    POSTCONF local_only FILE postfix_check_recipient_access.cf
    RESTART mta

Step 3: To create file "/opt/zimbra/conf/postfix_check_recipient_access.cf"
vi /opt/zimbra/conf/postfix_check_recipient_access.cf
Adding the lines following:
check_recipient_access lmdb:/opt/zimbra/postfix/conf/local_domains, reject
Step 4: To create file "/opt/zimbra/postfix/conf/restricted_senders" and list all user whom you restrict.
vi /opt/zimbra/postfix/conf/restricted_senders
Adding the lines following:
[email protected]            local_only
If you restricting all users in domain.
yourdomain.com            local_only
Step 5: To create file “/opt/zimbra/postfix/conf/local_domains” to list all domain where restrict to user sending mail.
vi /opt/zimbra/postfix/conf/local_domains
Adding the lines following:
yourdomain.com                     OK
otheralloweddomain.com      OK
Step 6: Run command the below to apply.
postmap /opt/zimbra/postfix/conf/restricted_senders
postmap /opt/zimbra/postfix/conf/local_domains
zmmtactl stop
zmmtactl start
*Note: I’m not survive when you upgrade system. Before upgrade you backup the configrue
If you undo this configure.
#postconf -e smtpd_restriction_classes=' '
#zmmtactl reload
Source: https://wiki.zimbra.com/wiki/Restrict_users_to_certain_domain 

Comments

  1. UnknownMarch 19, 2020 at 11:45 AM

    is it possible to have multiple rules for the blokcing? example: 1st config has useer1 & user2 and can only send to gmail.com; 2nd config has user3 & useer4 and can only send to yahoo.com

    ReplyDelete

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