RSS 4 projects tagged "antispam"

Download Website Updated 06 Jan 2011 OpenProtect

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Pop 300.81
Vit 6.64

OpenProtect is an anti-spam server that filters spam and blocks viruses, phishing, and other malware. Acts as an SMTP gateway and integrates with any email server like Postfix, Sendmail, qmail, Exim, Microsoft Exchange, Lotus Domino, Zimbra, etc.

Download No website Updated 21 Aug 2009 SpamCheetah

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Pop 36.47
Vit 41.27

SpamCheetah is a network-level spam filtering solution built around OpenBSD greylisting, tarpit, and blacklisting. It comes with a Web interface and requires zero administration. It does not allow spam to even land in your network, thus saving you precious bandwidth. It does not have the 'false positives' problem of losing legitimate mail.

Download Website Updated 29 Apr 2010 synspam

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Pop 74.83
Vit 4.08

Synspam uses Netfilter NFQUEUE to catch the source IP address of any machine connecting to your mail server, running multiple tests against it (RBL check, regexp on the reverse name, etc.) before forwarding the connection to the MTA. In order to have as few false positives as possible, a scoring system is used. If the source IP address is believed to be a spammer IP address, the connection can be dropped. There is a dry run mode if you just want to test it, which is the default.

No download No website Updated 31 Aug 2013 pgl4rbl

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Pop 22.43
Vit 15.24

pgl4rbl implements a Postfix policy server that mixes two widely used techniques: greylisting and RBL (DNS blacklists). The idea is that greylisting is applied only to SMTP clients that match a RBL; this means that normal clients are not delayed (such as with a normal greylisting implementation), and RBL false positives do not cause problems (like when outright blocking them at the SMTP level).

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libntru

A C implementation of NTRUEncrypt.

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JSONMinify

A JSON+C minifier.