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Belle-sip is a SIP (RFC3261) implementation written in C, with an object oriented API. * RFC3261 compliant implementation of SIP parser, writer, transactions and dialog layers * http client api * support of client TLS certificate * fully asynchronous transport layer (UDP, TCP, TLS) * fully asynchronous DNS resolution with SRV * full dual-stack IPv6 support * SIP transaction state machines with lastest corrections (RFC6026) * automatic management of request refreshes with network disconnection resiliency thanks to the "refresher" object * supported platforms: Linux, Mac OSX, Windows XP+, iOS, Android, Blackberry 10

reslog resolves IPs in Apache(8) log files. The result can then be analyzed by another program, like Analog. You can think of it as a replacement of the Apache(8) HostNameLookups directive, in the sense that it resolves client IPs altogether once a day. Resolving takes long time. This is mainly caused by resolving: Network packets may be filtered by firewalls; DNS servers may not be correctly configured; may not be up working; may sit in slow network sections; may be old slow machines; may have traffic jam... etc. All these reasons are out of our control.

LinkCheck is a free software package that checks a web site for bad links. Features Understands HTML 3.0 Understands Frames Understands JavaScript Fast and lean, written in C. Source code is free Can check a whole web site Can be restricted to subdirectory checks Estimates download times for each page and flags slow pages Validates and reports temporarily moved pages and checks the new location Reports server types Reports html files last modification time Validates mailto hrefs for valid DNS MX record on the internet Validates ftp/file hrefs by getting actual file via ftp protocol Reports news:, telnet:, wais:, gopher, powwow: urls Automatically walks the entire web site tree

This class works just like LWP::UserAgent (and is based on it, by being a subclass of it), except that when you use it to get a web page but run into a possibly-temporary error (like a DNS lookup timeout), it'll wait a few seconds and retry a few times. It also adds some methods for controlling exactly what errors are considered retry-worthy and how many times to wait and for how many seconds, but normally you needn't bother about these, as the default settings are relatively sane.

I could not find a client with the features I was looking for, so yes, here is yet another IRC client. Here's what makes it different from others: * absolutely NO scripting ability. * termcap based (e.g. fast!). * emacs-style key bindings * full ircd 2.9+ support. * virtual windows a la screen(1). * multi server support. * non blocking TCP connections. * basic support for multi-homed systems. * everything goes and stays in the lastlog. * convenient scrolling (with searching abilities) in the lastlog. * 10 display filters! (2 ignore features are based on this). * highly customizable. (format strings, filters..) * customization possible at every level (channel, window, server..). * non blocking DNS lookups (A and PTR records). * "tabkey" style completion for /msg, /squery and public discussion. * DCC support. * CTCP support. -- Christophe Kalt <kalt@stealth.net>

Anti-Spam SMTP Proxy is a spam filter that sits on port 25 in front of your regular SMTP server (sendmail, postfix, qmail, etc). ASSP performs a number of configurable spam checks, and on detecting a spam message, provides an immediate 5xx SMTP error code back to the client. Non-spam messages are passed to your regular SMTP server for further processing and delivery. ASSP includes SSL and IPv6 support. It is a single script with a web-based configuration tool. ASSP offers: - a whitelist of known good senders - Bayesian checks on message headers and contents - recipient address validation using LDAP and RFC822 conformance - relay denial - HELO checking - SPF (Sender Policy Framework) checking - DNSBL (DNS Block List) checking using many DNSBL services - various SMTP error modes detection - Virus detection and many other spam detection techniques.

Qpsmtpd started as a replacement daemon for the SMTP receiver (qmail-smtpd) from the qmail mail transport agent (MTA). qmail-smtpd has a number of shortcomings (e.g. being unable to check the validity of a recipient mail address) and is written in C which makes it burdensome to modify and extend. Qpsmtpd, on the other hand, is written in pure perl and can be customized easily. It consists of a core that implements a complete SMTP server, and a number of plugins/modules which control the operations. Such plugins include plugins to check the recipient and sender as well as plugins for virus scanning, spam checking, blocking lists (dns and rhs), AUTH and TLS. Qpsmtpd can not only be used with qmail but also with e.g. postfix and exim. It can also write messages to a Maildir or forward it to a remote host without buffering.

SMTP feed -- SMTP Fast Exploding External Deliverer for Sendmail Smtpfeed is a SMTP delivery agent which is called by sendmail, and it improves required time to complete delivery of copies of a message to recipients of huge number. This delay of delivery by sendmail causes by the fact that implementation of SMTP delivery routine in sendmail processes all delivery in a series. For this reason, when it takes long time for delivery to one recipient which is in a huge list, delivery to following recipients is greatly influenced. To avoid such a problem, delivery agents should be implemented so that a delivery is not influenced by preceding delivery: DNS query and SMTP delivery par destination should be processed in parallel. Smtpfeed is the SMTP delivery agent for sendmail implemented with this idea.

Spamilter is a Sendmail milter written entierly in C, and therefore is faster and less cpu intensive than other interperative based solutions. It blocks spam using the following methods; * Configurable Realtime DNS Blacklists * Sender Address verification * Configurable Black and White lists * Invalid MTA hostname verfication * Basic Virus/Worm file attachment rejection for files ending in .pif, .scr, etc.. via MsExtChk filter * SPF via libspf * Realtime firewall blocking of MTA hosts with invalid host names via MtaHostIpfw filter * Realtime rate limited connection blocking via firewall rule injection All actions are logged via syslog with both the sender and the recipient. From this, report generation and notification to recipients showing activity becomes extremely simple. LICENSE: BSD 4-clause Copyright 2003 - Neal Horman. All rights reserved. This product includes software developed by Neal Horman.

MeTA1 is a message transfer agent that has been designed with these main topics in minds: * Security * Reliability * Efficiency * Configurability * Extendibility MeTA1 consists of five main modules of which only one runs as root: * mcp: the main control program is similar to inetd(8): it starts all other MeTA1 modules and watches over their execution. mcp runs as root in order to bind to port 25 and to change the uid of the processes it starts. * smtps: the SMTP server receives e-mails. * smtpc: the SMTP client sends e-mails. * smar: the address resolver provides lookups in various maps including DNS for mail routing. * qmgr: the queue manager controls the flow of e-mails through the SMTP servers and clients.