Boomerang, the clever service for Gmail that enables you to send messages at specific times and reminds you if you haven’t received a reply to a message you’ve sent, has left beta and developed pricing plans. Boomerang remains free to use for up to 10 messages per month, but personal accounts (for normal Gmail) now cost $4.99 per month and professional accounts (for Google Apps accounts) cost $14.99 per month.follow link
Compare More Easily in Apple Mail
In Apple Mail, if you need to work back and forth between two different views of Mail's mailbox contents, you can do so quite easily. For example, you might want to look at a mailbox holding all filtered-in sales orders from the past week while also looking at a smart mailbox showing unanswered customer questions.
To avoid constantly clicking between mailbox views and losing your context each time, choose File > New Viewer window to get a second window and then arrange each window as desired.
Boomerang 1.0 for Gmail Adds Pricing Plans