Easy SMTP Server   
http://www.softfolder.com

Send e-mail messages easily and securely from your portable PC while you are traveling around the world! Every time you change your location connecting your PC to different Internet Service Providers (ISPs), you must reconfigure your e-mail program to be able to send messages via different SMTP servers you have to use. Easy SMTP Server is a simple easy-to-use program working in background that lets you send e-mail messages directly from your PC bypassing ISP's SMTP servers. Using this program instead of your ISP's SMTP server you will increase your e-mail security and privacy as well as get rid of annoying change of settings for your e-mail program. Easy SMTP Server is easy to configure! The e-mail program you already use for sending and receiving messages can be connected to the server in a very easy way - just use the word "localhost" instead of your current SMTP host. Having done it, you can send messages in a usual manner. Easy SMTP Server is supported by all email programs including Outlook Express and Eudora. Easy SMTP Server is very fast! It may serve multitude of SMTP connections concurrently to use your Internet connection up to maximum. The user interface of the program is very easy to learn, excellent documentation is included. Try our Easy SMTP Server for free.

SMTP Diagnostics   
http://www.whitepeaksoftware.com

SMTP Diagnostics is a program that assists with troubleshooting problems that can occur with outgoing mail (SMTP). You can send a test message, with or without attachment(s), and view the protocol messages exchanged between your computer and the mail server. This information can help you analyze problems or can be passed on to technical support personnel.

Email catcher&sender   
http://www.worldminer.com

Email catcher & sender is software designed to Extract e-mail addresses from local text files, web sites , search engines and Newsgroups. Just type one or more keywords, Email catcher & sender will query major Search engines: Yahoo, Google, AllTheWeb, Aol, Msn, Looksmart, Dmoz etc and extract e-mail addresses matching your query.By using powerful e-mail and url filters, you can extract only the e-mail addresses you actually need from web-pages, you no longer have to buy mailing lists. Email catcher & sender allows you to extract your own , when you want. Email catcher & sender also can validate e-mail lists and send customized e-mail directly to recipients and get instant feedback. It has a built in SMTP relay , so you bypass the SMTP relay server of your ISP. In addition, Email catcher&sender can give you instant feedback on every e-mail sent , then you can delete those invalid e-mail addresses from your mailing lists.

Emailserver detector   
http://www.worldminer.com

Emailserver detector is a software designed to directly search email addresses from mail servers. It can verify all user names that you specified on the mail server.The program tries to connect with a specail Smtp-server and simulates sending the message. It does not come to the message sending ,in fact,It disconnect as soon as mail server informs does this address exist or not.The program is multi-threaded that provides the high speed of verifying. Using this software, you can get lots of email addresses from a special email server,For example :Hotmail.com .It can also send message to valid email addresses while searching.It has Embeded in a SMTP server that quickly send mass email directly to recipients.No use your ISP'S SMTP server.You can also save the valid email addresses to a one-per line text file.

X-Ray Mail Assistant Beta   
http://www.xrayapp.com

X-Ray is an email header filter and POP/SMTP server switching tool. It runs as a local POP/SMTP relay server and scans your incoming and/or outgoing mail for user specified mail headers. Once it finds a match it can change the header, remove it, replace it or perform some other special modifications. In addition, the program allows you to set up multiple profiles for POP and SMTP servers and switch between them from the system tray. X-Ray can also run as an NT service.