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- smtp-vilter is a high performance content filter for sendmail to detect e-mail
- viruses and spam. smtp-vilter decides whether to pass, discard or simply mark
- an e-mail message based on the results of a content scan and user defined
- strategies. It can interact with the pf packet filter when it detects spam,
- viruses or unwanted content by adding the IP address of the sending host to a
- PF table.
- smtp-vilter does not do the scanning by itself, it relies on third-party
- products like ClamAV, SpamAssassin, or any ICAP capable scanner for this
- purpose. smtp-vilter uses the milter API to communicate with sendmail and one
- or more backends to communicate with the actual virus or spam scanning engines.
- The backends can be chained to perform a series of checks on one message in one
- run.
- The software is highly configurable and provides mechanisms for secure
- operation.
- The backends included in the distribution provide support for the Clam
- AntiVirus Daemon (clamd), the Spamassassins Daemon (spamd), ICAP capable
- backends (icap), and the standalone attachment backend to filter out unwanted
- attachments. The backends are realised as shared libraries that are loaded
- dynamically when smtp-vilter starts. All backends have their own configuration
- file.
- smtp-vilter is documented in the following manpages:
-
- smtp-vilter(8) Running the smtp-vilter
- smtp-vilter.conf(5) The smtp-vilter config file
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