1)   GAlert 2.5.2.6
GAlert (Google Alert) is a easy to use and high performance GMail notifier supports multiple GMail accounts and automatic login. It brings clean, easy and elegant look to the way people check their new email.
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 2)   MultiMail Notifier 3.0.001.02
Notifies of new e-mail arriving at multiple e-mail accounts. Multi-Mail Notifier provides system tray notification which appears once you get e-mail on one of your accounts. Supported e-mail types: POP3, Gmail, Yahoo!, Hotmail.
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 3)   Chrysanth Email Notifier 2.3
Chrysanth Email Notifier is a POP3, IMAP4 and Gmail notification software that helps you to get notified of every incoming email and even spams in your mail boxes while they are still sitting on the remote email servers.
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