TLim Free and open source transaction limiter for Sendmail
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limit transaction limiter transaction tracker limit transaction sendmail modification

TLim Description

Free and open source transaction limiter for Sendmail TLim is a modification to sendmail, that keeps track of how many transactions take place from a specific IP, and sanctions IPs that perform more than a specified number of transactions in a specified period of time via a null route entry(this is simply the default action of a shell script provided, customize at will). This is implemented specifically to discourage outbound SPAM from, say, a dialup pool of clients for example, and to sanction remote hosts that attempt to send email to non-existent accounts. Due to the obvious potential for remote abuse, the latter is optional. TLim allows specific IPs to be made exempt from TLim sanctions. Requirements: · Sendmail 8.14.3. or later

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