Can we get a downloadable email notifier that would indicate when new email has come in (like gmail's notifier)?
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Sort of. We do not intend to supply a native application that sits in your task bar and alert you of new email. But I have a personal project I'm working on in my spare time which is a service to allow a new mail notify widgets to be written. Once done this will make it easy to write Microsoft/Yahoo/Mac OS X/Google/RSS based widgets that monitor GatorLink email.
Alternatively you may be able to find a free generic one that can login to your GatorLink mail account like a normal email client would. Just be careful which one you choose as these types of apps often have adware/spyware included that they don't tell you about. This is not an endorsement but eye-mail looks like it may work for that http://eye-mail.sourceforge.net/