Restrict account from sending emails to all domains

Restrict account from sending emails to all domains

   KB 22722        Last updated on 06/9/2016  




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Problem


How to restrict a single account from sending emails to all domains.

Resolution


Steps:

1) Specify the account for which the restriction is applied.

echo "test@example.com restrict_sender" > /opt/zimbra/postfix/conf/restict_senders 

Note: If you would like to restrict all users of a domain, enter the domainname instead of email ids. For example:

echo "yourdomain.com restrict_sender" > /opt/zimbra/postfix/conf/restict_senders  

2)

postmap /opt/zimbra/postfix/conf/restict_senders

3) Create a blank file in which no domain name is specified.

touch /opt/zimbra/postfix/conf/restrict_recipients 

4)

postmap /opt/zimbra/postfix/conf/restrict_recipients 

5) In the file /opt/zimbra/conf/zmconfigd.cf, find the "SECTION mta DEPENDS amavis", and enter the following before the "RESTART mta" line:

vi /opt/zimbra/conf/zmconfigd.cf

Enter the lines

POSTCONF smtpd_restriction_classes restrict_sender 
POSTCONF restrict_sender FILE postfix_restrict_sender.cf 
echo "check_recipient_access lmdb:/opt/zimbra/conf/sender_recipients, reject" >> postfix_restrict_sender.cf 

6) Enter the line below at the top of the /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf file.

check_sender_access lmdb:/opt/zimbra/conf/restrict_senders

7)

vim /opt/zimbra/postfix/conf/main.cf 

Enter these two lines

smtpd_restriction_classes = restrict_sender 
restrict_senderl = check_recipient_access lmdb:/opt/zimbra/conf/sender_recipients, reject 

8)

cd /opt/zimbra/conf 
echo "check_recipient_access lmdb:/opt/zimbra/conf/sender_recipients, reject" >> postfix_restrict_sender.cf 

9)

zmmtactl restart 


Additional Information


Verified Against: Zimbra Collaboration 8.6, 8.5, 8.0 Date Created: 06/07/2016
Article ID: https://wiki.zimbra.com/index.php?title=Restrict_account_from_sending_emails_to_all_domains Date Modified: 06/9/2016



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Wiki/KB reviewed by SME1 SME2 COPY EDITOR Last edit by Teodor Vizirov
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