DynaStop

11023.1657.1319752893 GPL (GNU General Public License)    
3.3/5 27

  1,891 downloads

A gpl licensed LINUX utility to examine IP4 based addresses for Exim

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DynaStop is a gpl licensed LINUX utility to examine IP4 based addresses for Exim for the purpose of filtering based upon patternistic rules defined by the administrator.

This software will work with any mail transfer agent/utility (like procmail) that can run external programs and respond to error codes. I would be most appreciative to anyone doing so and would like to share the medthod of incorporating DynaStop into their mail system. Full Credit and a link will be gladly provided.

This can be a pivotal factor in e-mail filtering and server load management as dynamic IP addresses are typically used for dial-up, dhcp, and DSL accounts. All of which have a designated mail exchange server that all outbound mail flows as defined with many if not most large Internet Service Providers (ISP) such as Road Runner, ATT, Qwest, PacBell, BellSouth, EarthLink, AOL, and many more around the world if their terms of service or acceptable use policy.

With DynaStop, an Exim administrator can filter incoming mail on the basis of whether it is a dynamic IP address, thus reducing system load and resources in processing unwanted mail as all legitimate mail from any given ISP will be sent from a proper mail exchange server.

IMPORTANT: DynaStop is now a server/client combination to avoid the problematic issue of large configuration files consuming/thrashing memory. This also make it posible for a large mail cluster to share one active DynaWall server. DynaStop now requires the server to connect to on the command line. YOUR EXIM CONFIGURATION MUST BE MODIFIED. SEE THE CONFIGURATION EXAMPLES BELOW.
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Last updated on October 31st, 2011

#anti-spam filter #IP address filter #spam filter #DynaStop #anti-spam #spam #mail

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