GrowlMail is a plug-in for Apple Mail that posts a Growl notification every time new mail arrives.
What is new in this release:
* Per-mailbox notifications, configure it however you want.
* 1 Notification per-gmail message, no matter how many labels you've applied.
* Growlmail keeps notifying, "# new emails", but it's not email - it's existing Mail Notes.
* GrowlMail duplicates notifications if "Use IDLE command" is set in the Mail preferences
* Mail.app hang
* Add %receiver as token for GrowlMail preferences
* Suppress account name in notification title when only one account is enabled
* Highlight email instead of opening a new window
* GrowlMail accidentally loads images
* Support for sent messages
* Checkboxes for everything