How to add X-Envelope-To header

Revision as of 07:28, 19 January 2024 by Vdhande (talk | contribs) (→‎How to add X-Envelope-To header)
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How to add X-Envelope-To header

   KB 23091        Last updated on 2024-01-19  

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1. Create a file. Note: Perform these steps in MTA server(s).

vim /opt/zimbra/common/conf/

append the line:

/(.+)/          PREPEND X-Envelope-To: $1

2. Add the following line in /opt/zimbra/conf/zmconfigd/

check_recipient_access pcre:/opt/zimbra/common/conf/

It should look like:

%%contains VAR:zimbraMtaRestriction check_client_access lmdb:/opt/zimbra/conf/postfix_blacklist%%
%%contains VAR:zimbraServiceEnabled cbpolicyd^ check_policy_service inet:localhost:%%zimbraCBPolicydBindPort%%%%
check_recipient_access pcre:/opt/zimbra/common/conf/

3. Finally restart:

 zmmtactl restart;zmconfigdctl restart

Additional Content

Beware, that this solution breaks the privacy of Bcc recipients.

There is also a bug opened for that here.

Verified Against: Zimbra Collaboration 8.8.15, 9, 10 Date Created: 01/11/2016
Article ID: Date Modified: 2024-01-19

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Wiki/KB reviewed by SME1 SME2 COPY EDITOR Last edit by Vdhande
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