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Subsidiary of AOL
FoundedUnited States
HeadquartersUnited States

MailBlocks is an e-mail hosting service company based in the United States. It was acquired by AOL on August 3, 2004.[1] Phil Goldman set up the firm.


Mailblocks offered free challenge-response spam filtering web email service and an IMAP interface as a revenue service.[2]


  1. ^ "America Online, Inc. Announces Acquisition of Mailblocks, Inc". AOL. 2004-08-03. Retrieved 2008-04-15.
  2. ^ "Mailblocks review". Retrieved 2009-08-03.