"QuickMailer is a snappy way to send email from the menubar" - lifehacker.com
"Why can’t sending an email be as painlessly fire-and-forget as sending an IM? Enter QuickMailer." - cultofmac.com
"QuickMailer is a real lifesaver." - 9to5mac.com
QuickMailer sends emails using your primary Mail.App account, so no configuration is needed. It also looks up your previous recipients to provide auto-completion.
The menubar item glows red when you have unread mails.
Send off an email with just two keyboard shortcuts:
To compose email: ctrl+⌥+⌘+m
To send an email (same as Mail.App): ⇧+⌘+d
You have the possibility of making the app remember individual fields (to, subject, message, attachments), so that they are right there ready for your next email. Quick, mail away!