read_hash(%whitelist_sender, '/opt/zimbra/conf/whitelist') $ sudo touch /opt/zimbra/conf/Īll whitelists will be in the file /opt/zimbra/conf/whitelist, and the IPs in the blacklist can be seen in the file /opt/zimbra/conf/blacklist.Įxample: $ cat /opt/zimbra/conf/whitelistĪfter that we modify our /opt/zimbra/conf/nf by adding the below lines. First, we create two files that will store the domains and email addresses we wish to whitelist or blacklist. The following are steps taken by our Support Engineers to configure whitelist and blacklist Zimbra Amavis Spam filtering.ġ. Whitelist or Blacklist a domain or email address on Zimbra Amavis By default, it will trigger all sender addresses
Sender address triggers FILTER smtp-amavis::10026: This means it will filter emails through Amavis. NOQUEUE: Postfix has not assigned a queue-id to this message as of yet.Ģ. Two types of messages logged by Amavis are:ġ. Also in the case of spamming, we can blacklist the domain or IP as well. To prevent this we can whitelist the trustworthy domain, email address, or network. Then depending on the result of the scan, it gives postfix reply whether it should deliver or drop the email.Īt times, we get false negatives which are most common with files having encryption or the executables ones.
Zimbra uses Amavis to scan incoming and outgoing emails for viruses. It communicates to MTA via (E)SMTP or LMTP, or by using helper programs.Īmavis is best with Postfix, fine with dual-sendmail setup and Exim v4, works with sendmail/milter, or with any MTA as an SMTP relay. Today, let’s see how our Support Engineers fix this issue for our customers as part of our Server Management Services.Īmavis is a high-performance interface between mailer (MTA) and content checkers: virus scanners, and/or SpamAssassin.
Zimbra Amavis Spam filtering can be set for both domains, email addresses and IP networks/addresses. At Bobcares we often get requests to configure whitelist and blacklist Zimbra Amavis Spam filtering for our customers, experiencing NOQUEUE messages for emails on Zimbra Amavis.
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