Cyren Antispam

NOTE: The Cyren Antispam filter is available if NoSpamProxy Protection is licensed.

This filter is valid for the following senders: External. The default SCL value for a single multiplier is 4.

This filter creates a fingerprint of the email to be checked based on defined criteria and compares it with the known fingerprints of the Cyren Detection Center on the Internet. If this is known, Cyren classifies the email as spam. NoSpamProxy will then assign 4 SCL points, which means that the email is already rejected with the default settings. The filter itself has no further setting options. The administrator can only exert further influence on the filter result by weighting with multipliers.

NOTE: The Cyren service supports malware scans up to a file size of 50 megabytes. Archives, e.g. ZIP files, are unpacked if possible and the files are scanned individually. The limit of 50 megabytes applies to the size of the unpacked files.


Reporting false negatives and false positives