Blacklist and Whitelist with Amavisd
Configure Blacklist and Whitelist with Amavisd in ZIMBRA instead of Postfix Blacklist/Whitelist. Configuration steps: 1. Edit /opt/zimbra/conf/amavis.conf.in and add the following…
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SPAM.
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White list for ZIMBRA to bypass RBLs
If you use RBLs such as spamhaus.org on ZIMBRA to block spam, a customer's mail server may be blacklisted by the RBLs and unable to send to your system after being identified as potential spam.
Bypass spam checking for internal messages in Zimbra 8.x
Zimbra normally scans both internal email between local accounts and external email for spam. Sometimes internal messages are therefore marked as spam.
Improving Anti-spam on Zimbra with Whitelist/Blacklist
Email sent by users often ends up in the SPAM folder of recipients on the same Domain or system because the anti-spam system considers the message to resemble SPAM.