Google Talk is a simple and free way to talk with and send instant messages to your friends.
AVG AntiVirus FREE 2013 provides advanced protection for web surfing, emailing, and social networking. And it's packed with features, too: AVG Do Not Track, LinkScanner, Anti-Spyware, and free 24/7 phone support for the USA, UK, Ireland, and Canada.
The bottom line: Ad-Aware is your best option for keeping spyware and adware under control on your PC
ANT 4 MailChecking
E-mail checker that lets you know when you have new emails. You can preview headers and messges or delete spam mails directly from the server. It's very easy to set up and use. It even comes with an option to shutdown your PC by email.
This program allows you to preview e-mails on multiple POP3 servers and delete unwanted messages before using e-mail client. It includes automatic spam filtering and serves as a notifier for both new e-mail arrivals and changes on specified web pages
NT Email Notifier
NT Email Notifier is a small free e-mail checker that allows you to check unlimited mail boxes for new messages. The program use system tray notification and play a WAV file. You can set time interval to check and add program to startup list.
Smart Mail Checker
Smart Mail Checker will notify you about a new incoming important message.
spamBat is the low cost spam solution eliminating it before you download it to your PC and without the complicated filter creation, maintenance and false positive failures of ordinary spam filter applications.
AXIGEN Enterprise Edition for Windows OS
AXIGEN Mail Server - a complete messaging solution backed up by first rate tech support; available for Windows Server 2003/2008; (E)SMTP/POP3/IMAP4/Webmail, centralized Web/CLI Admin, Groupware, Personal Organizer, FREE technical support.
MailBell (Email Notify, Spam Blocker)
MailBell is a utility that checks email on POP3, POP3-SSL, IMAP, IMAP-SSL, MAPI and Gmail-Email accounts. It can notify you of new mail, can detect spam messages and lets you delete mail with large attachments without the need to download it.
Your computer is always on, calculating, downloading or doing whatever? AMC+ notifies if you get an email, even when your monitor is powered off! If you get an email, amc+ notifies you with a blinking LED, or by playing a sound !
AXIGEN Mail Server for Windows OS
AXIGEN-a complete messaging solution for Windows XP/Server 2003;offers (E)SMTP,POP3,IMAP,Webmail,Groupware,advanced security,Microsoft Exchange ActiveSync ,LDAP & Active Directory synchronization,centralized Web/CLI Admin,free technical support.