BlackMail BlackMail is a highly configurable SMTP mail filter that runs at a system level as a proxy to your existing mailer.
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SMTP email mail filter filter SMTP mail SMTP filter

BlackMail Description

BlackMail is a highly configurable SMTP mail filter that runs at a system level as a proxy to your existing mailer. BlackMail is a highly configurable SMTP mail filter that runs at a system level as a proxy to your existing mailer. Selectively reject bogus or spam mail during receipt, saving you extra storage space or irate users. Blackmail operates at a system-wide level: all incoming and optionally outgoing mail is filtered.Will block unwanted mail relaying (if your mailer is unable to) and spams.The filtering consists of various checks on the SMTP envelope and message headers: if any tests fail then the mail will be bounced. Blackmail can...Check against spam sitesCheck against spam keywordsCheck host names and email addresses using DNS for validityCheck against the 'RBL' (Realtime Blackhole List) for spam IP addressesCheck that To: and From: address do not match (a common spam signature)Check correct header formation e.g. Message-IDThe spam sites and spam keywords are of your choice, you can block who or what you want. Minimal sample lists are provided. BlackMail is known to work with:Mailers: Smail, Sendmail, Qmail, FetchmailOSes: Aix, various BSD, Irix, Linux, NeXTStep 3.x, Solaris, SunOs, SVR4 (Re-confirmation is required for some of these OSes.)It should be possible to use BlackMail with most SMTP mailers on most UNIX systems. Blackmail is not designed to run on Windows or OS/2, but if you wish to port it... What's New in This Release:· Removed old reference to www.bitgate.com

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