ANSMTP SMTP Component Build   
http://www.emailarchitect.net

ANSMTP Object is a high performance, easy- to-use and full-featured SMTP COM Object (email component) which enables your ASP, VB, VC++, C#, VB.NET, ASP.NET, VBS, Jscript, WScript, Delphi or other COM environment application to send rich text/HTML email using the SMTP/ESMTP protocol. ANSMTP supports all operations of SMTP/ESMTP protocol and provides many advanced features as follows: - supportText/Html/Alternative body; - support Multiple attachments and embedded pictures; - import text/html to email body from specified file; - support "AUTH MSN" authentication. - add customized headers in email; - save email as specified file; - support normal recipient, carbon copy recipient and blind carbon copy recipient; - support ESMTP "AUTH LOGIN" authentication; - DNS lookup to send email without specified smtp server; -test validity of email address; - send email via queuing of IIS SMTP Service; - support Asynchronous mode and event driving; - support unlimited threads up to the limits of operating system; - smart Threadings-Pool which can automatically increase or decrease worker thread in need; - support SSL/TLS connection; - support signed and encrypted message; - support secure password authentication; - support IPv6; - and more. Though it is simple to use, many featured examples are provided in the download to get you started quickly. New features added in this version: - support "AUTH MSN" authentication. - support mail queuing with EASendMail Service (a tool for sending mass mail).

Etherscan Analyzer   
http://www.etherscan.com

Etherscan Analyzer is an advanced network sniffer and protocol analyzer for Windows. With Etherscan, you can capture and analyze all packets over the local network. Etherscan decodes all major protocols, including Ethernet, NetBEUI, TCP/IP, and others. Packets are decoded down to the lowest layer with analysis of the most protocols and full access to raw data is provided. Etherscan Analyzer is capable of reconstructing TCP/IP sessions. With this feature, you can easily view data in their original format, for example, you will be able to read the actual text of an email - as well as any attachment - exactly as it was sent. With Etherscan you are able to filter for specific traffic easily. Using these flexible, powerful filters during or after capture you can isolate traffic by specific node, protocol, error type and/or packet content. Also you can set aliases to IP or MAC addresses. Etherscan Analyzer is a helpful tool for LAN administrators, security professionals, network programmers, or anyone who wants to have a full picture of the traffic going through one's PC or LAN segment. This application is designed for Internet users and small and medium-sized networks and can run on any Windows

Accurate Network Monitor   
http://www.hhdsoftware.com

HHD Accurate Network Monitor - ip packet sniffing, monitoring and protocol analyzer software tool that can sniff internet protocols performing tcp / ip, udp / ip communication traffic analysis. LAN connection sniffer and internet data capture utility. You will find this program useful while viewing, logging, testing, troubleshooting any network service. Can be used to spy, view, log, test and analyze HTTP, SMTP, FTP, POP3, IMAP, LDAP, H323, SIP and other system protocols.

ipPulse   
http://www.nwpsw.com

ipPulse is a Remote Status Monitoring Tool. Use ipPulse to monitor the up/down status of IP connected devices (nodes) on any IP connected network. ipPulse uses a variety of methods, including ping, tcp connects, and SNMP to poll and check the network connectivity of a list of user-defined nodes. ipPulse alerts you to failures using a variety of techniques ranging from audible messages to email and pager notification. Supports a large list of target hosts entered as either hostnames or IP addresses. The list can be imported from a text file. Polls the list on a cyclical basis with full control over the list cycle timing parameters. Supports a primary and secondary test. Supports standard Ping ICMP Echo Requests/Replies and automatically uses UDP High Port Ping under Winsock 2 for failed contacts. Primary test only. TCP Port numbers for TCP connect tests are assignable on a per-node basis. Primary or secondary test. Optionally uses SNMP v1 as a secondary test by requesting MIB2 OID interfaces.ifTable.ifEntry.ifOperStatus for every interface found on the target node. Community names are assignable on a per-node basis. Optional SNMP queries can be made for obtaining more extensive data from the target host. ipPulse includes a number of OID presets and 12 user defined OIDs. Example: you can obtain MAC addresses for every interface from an SNMP enabled host. Multiple alerts and logging. Alert options include beeping your computer, playing a wave file, notifying someone by email, or paging someone using either standard numeric or TAP compatible alphanumeric pagers. Logging options include logging all test results to a text file, logging only errors to a text file, or logging errors to a dynamically created HTML page. Any combination of logging options can be used. Alerts are issued upon failures using user-defined criteria. Changes from a FAIL state to a PASS state can now generate email messages or pager messages.

Network Troubleshooting Analyzer   
http://www.javvin.com

Packet Analyzer pro edition is an advanced packet analysis and sniffing tool with powerful protocol decodes capabilities. It can capture all traffic transport over local network segment and decodes all major and frequently used protocols including TCP/IP, UDP, HTTP, HTTPS, SMTP, POP3, TELNET, FTP, etc. All information is displayed in simple English with easy to use interface for anyone to master the tool with minutes of self training. Packet Anakyzer provides handy traffic and message analysis on email, web and transactions so that you can view all emails, Internet traffic and transactions of the entire network real time ir record them for later usage. With Packet Analyzer, you can easily filter the network traffic to focus on the information that you are looking for. Use these flexible, powerful filters during or after capture to isolate traffic by specific node, protocol, error type and/or packet content. Packet Analyzer Key Features: Smart Real-time packet capturing and analyzing; Reconstructs TCP/IP sessions and enables you to see data in their original format; Capture, display and save transaction information such as user name and password and the entire message Capture Pop3 and SMTP emails, display and save in Outlook Express Message Format; Capture HTTP traffic for you to view all Internet web traffic; Powerful Packets Viewer to examine data in plain English Protocol decodes on TCP/UDP//IP suite and application protocols including POP3, SMTP, HTTP, TELNET, FTP; Powerful filter provides a general and flexible mechanism for user to focus on useful packets; Trace TCP connection states and display bandwidth usage and other critical information Support multiple monitors and terminal server; Suppot both Ethernet and 802.11 wireless infrastruture.