Zimbra’s Per Domain Disclaimer/Signature Feature

With Zimbra’s per domain disclaimer/signature feature, you can set a mandatory signature or disclaimer to all outgoing email.

How to Enable the Per Domain Disclaimer/Signature Feature

Enabling the per domain disclaimer/signature feature is easy. Follow these simple steps:

    • Enable the disclaimer feature on the global configuration by running the following command:
      zmprov mcf zimbraDomainMandatoryMailSignatureEnabled TRUE
    • Add plain text and HTML disclaimer to the domain by running the following commands:
      zmprov md DOMAIN.COM zimbraAmavisDomainDisclaimerText "text disclaimer" 
      zmprov md DOMAIN.COM zimbraAmavisDomainDisclaimerHTML "<html><body><h1>HTML Disclaimer</h1><br> <h1>User 1</h1><br>phone number here</body></html>"
    • After adding the disclaimer to the LDAP server, enable/generate domain disclaimer files for altermime on the MTA server by running the following command:
      ./libexec/zmaltermimeconfig -e DOMAIN.COM
    • If you have multiple MTAs configured in your ZCS environment, run the following command on the remaining MTA servers:
    • If you do not want to wait for the changes to become active, you can run:
      zmamavisdctl restart
    • In case you want to disable the domain disclaimer read the steps on the wiki: https://wiki.zimbra.com/wiki/Steps_to_configure_per_domain_disclaimer_on_ZCS_8.5_and_higher_versions


Zimbra’s per domain disclaimer/signature feature is a powerful tool that can help you maintain a professional image in all your email communication. By following the simple steps outlined above, you can enable or disable this feature with ease. Try it out today and see the difference it can make!


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