• Goodbye Sparrow: 8 Alternatives to Sparrow for Email

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• MailSteward: an answer to disappearing mail in Apple mail

  2012-01-23

• Xobni | Your smarter address book is waiting.

  2009-08-29

• Yankback: Stop an email | Recall an Email | Get an email back after it’s sent

  2007-08-25

• Stop Junk Mail, Block Unsolicited Mail, Opt-out of Unwanted Mail | Catalog Choice

  2007-08-25