How to redirect mails from specific email to one user
How to redirect emails from specific e-mail address to a specific user
In this article we will see how to redirect an email from a specific email address to a designated user. For example you have emails coming from email@example.com that are flooding your users, and you want to catch all emails from this email address, and to redirect them to a user (firstname.lastname@example.org) that will act as a quarantine user.
To accomplish our task, we will be using Postfix Header check, to catch and redirect the emails.
1. Go to:
2. Create a file for headers:
3. In this file add this line:
/^From:(.*)email@example.com/ REDIRECT firstname.lastname@example.org
4. Check the current settings:
zmprov gcf zimbraMtaHeaderChecks
5. If there are no entries you can run the following command to add the new file to the config:
zmprov mcf zimbraMtaHeaderChecks 'pcre:/opt/zimbra/conf/custom_header_checks'
If there is already a setting, you can just add the new to the old as follows:
zmprov mcf zimbraMtaHeaderChecks 'pcre:/opt/zimbra/conf/custom_header_checks_old, pcre:/opt/zimbra/conf/custom_header_checks'
6. Check if the setting is written to the config:
zmprov gcf zimbraMtaHeaderChecks postconf | grep header_checks
If not, run:
zmprov mcf zimbraMtaBlockedExtensionWarnRecipient FALSE
7. Restart mta
Next, test if the configuration is working by sending an email from a test email.
If you configure that on ZCS 8.6, and then upgrade to 8.7, the setting will be working without re-doing it.
Below are more header checks you may want to use:
/^Subject:(.*)From U.S. Ambassador to Nigeria/ DISCARD #spam rule no msgs from Nigeria /^Subject:(.*)\?KOI8-R\?/ DISCARD #spam rule Russian encoding not allowed by this server /^Subject:.*Bad Word*/ REPLACE Subject: Censored /^From:(.*)Slice-O-Matic Reviews/ DISCARD #spam rule No slice o-matics /^From:(.*)Your Free iPad/ DISCARD #spam rule No thank you /^From:(.*)email@example.com/ DISCARD #spam Known spammer address /^From:(.*)Tarot Reading/ DISCARD #spam rule No Tarot reading /^From:(.*)firstname.lastname@example.org/ REDIRECT email@example.com #spam rule redirect all messages from this address /^From:(.*)<(.*)@yahoo.com>(.*)/ REDIRECT firstname.lastname@example.org /^To:(.*)<(.*)@yahoo.com>(.*)/ REDIRECT email@example.com /^Received: from .+\..+\.mydomain\.com .+(by mail\.mydomain\.com .+) / REPLACE Received: $1 /^Received: from mac7\.local/ IGNORE /^Received: from .*\.local/ IGNORE
The source of this information, was taken from here