Steps to fix NULL disclaimer on outgoing emails
How to fix NULL disclaimer on outgoing emails
Problem
The outgoing emails from the domains which are not configured with domain-disclaimer contain NULL at the end of each outgoing email
Solution
Configuring zimbraDomainMandatoryMailSignatureEnabled=TRUE at global config enables disclaimer for all domains and adds NULL as the disclaimer where zimbraAmavisDomainDisclaimerHTML and zimbraAmavisDomainDisclaimerText are still not configured.
As a workaround to prevent adding NULL from other domain's outgoing emails, configure a blank disclaimer.
With the steps below, three empty disclaimer files (.b64, .html, .txt) are generated in the path "/opt/zimbra/data/altermime/" :
Step 1
zmprov md <OTHER-DOMAIN> zimbraAmavisDomainDisclaimerHTML ""
Step 2
zmprov md <OTHER-DOMAIN> zimbraAmavisDomainDisclaimerText ""
Step 3
./libexec/zmaltermimeconfig -e <OTHER-DOMAIN>
Related bug - https://bugzilla.zimbra.com/show_bug.cgi?id=101069
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Submitted by: Heera Singh Koranga