smfs

Pop	52.12
Vit	4.07

eSAV is an email sender address verification console utility for Linux/FreeBSD. It opens an SMTP connection to the sender's mail server and emulates an error return message to the sender without actually completing the transaction. It's an easy way to check if an email address is alive.

Pop	31.64
Vit	2.77

GreyList Sendmail milter is a lightweight, fast, and reliable Sendmail milter that implements the Greylisting antispam technology. It has a flexible configuration and a very effective Greylisting algorithm on the base of this tuple: sender's IP address (Class C subnet), envelope sender address, and envelope recipient address. It's a light alternative to the milter-greylist, graymilter, and milter-gris milters.

Pop	32.94
Vit	1.86

milter-clamav is a lightweight, reliable, and fast Sendmail plug-in for the ClamAV antivirus scanner. It uses a mail scanning engine built into clamd (the ClamAV daemon program). This filter scans messages less than a defined size, rejects infected messages at the DATA stage of SMTP session, and adds an information header to scanned messages.

Pop	37.89
Vit	1.86

milter-spamassassin is a lightweight, reliable, and fast Sendmail plug-in for the SpamAssassin mail filter. It uses advanced statistical and heuristic tests to identify SPAM built into spamd (the SpamAssassin daemon program). This filter has a hosts/networks whitelist, scans messages less than a defined size, rejects SPAM messages at the DATA stage of SMTP session, copies SPAM messages into the special "garbage" mailbox, performs Subject tagging if SPAM is detected, and adds an information header to scanned messages.

Pop	27.33
Vit	3.22

milter-spamblocker is a lightweight, reliable, and very fast Sendmail plug-in designed to reject spam and Internet worms. It blocks up to 99% of spam and up to 99.9% of Internet worms. You will not need to pay for the garbage traffic now. It has a flexible configuration, real-time sender and recipient email address verification technology with autowhitelist, smart anti zombie technology, safe anti backscattering technology, smart GreyListing technology with autowhitelist, and a low level of false positives.

Pop	31.03
Vit	1.59

RBLchk is a simple utility that checks an IP address with the most useful and reliable RBLs (real-time blackhole lists).

Pop	36.12
Vit	2.18

smf-clamd is a Sendmail filter for the ClamAV antivirus program. It aims to be lightweight, reliable, and simple. It only scans messages that are less than a defined size. It has a hosts/networks whitelist, rejects infected messages at the SMTP DATA stage, adds an information header, and logs all filter activities to syslog. The code is small (does not exceed 600 lines), fast, stable, and requires few resources. No temporary files are created.

Pop	41.79
Vit	2.82

smf-spamd is a Sendmail filter for SpamAssassin. It aims to be lightweight, reliable, and simple rather than have a myriad of options. It only scans the messages less than defined size, has a hosts/networks whitelist, performs subject tagging if SPAM is detected, adds an information header, copies SPAM messages to the defined "garbage" mailbox, rejects SPAM messages at the SMTP DATA stage, and logs all filter activities to syslog. The code is small (does not exceed 580 lines), fast, stable, and few resources are required. No temporary files are created.

Pop	73.32
Vit	2.72

Sendmail Sender Address Validator is a lightweight, fast, and reliable Sendmail milter that implements a real-time Sender email Address Verification technology. This can stop some kinds of spam with a spoofed sender's email address. It also implements real-time Recipient email Address Verification, which can be useful if your machine is a backup MX for the recipient's domains, or if your machine forwards all email messages as a relay host for your domains to another internal or external email servers. It is a light alternative for the spamilter, milter-sender, and milter-ahead milters.

Pop	89.93
Vit	3.42

SPF Sendmail milter is a lightweight, fast, and reliable Sendmail milter that implements the Sender Policy Framework anti-spam technology with the help of the libSPF2 library. It checks SPF records to make sure that email messages are authorized by the domain name from which it is coming. It has a flexible configuration with options to tag, quarantine, or block the spoofed email messages. It's an alternative for the spfmilter, spf-milter, and milter-spiff milters.