[Plugin: Update Notifier] Only one notification per update

Dear Jon,

The plugin is great, thanks a lot for it. 🙂 Could you please make it so it’s possible to only receive one notification per update? I keep e-mails that contain things that need doing in my inbox what results in duplicate e-mails when I get repeated notifications.

Thanks!
Wacław

http://ww.wp.xz.cn/extend/plugins/update-notifier/