2 ms·

Sure it is. They licenced Microsoft's Exchange protocols.

• jonknee 11y ago
  Licensing from a fellow giant who will absolutely take you to court if you don't and repurposing the ideas of small indie developers are entirely different things.
  • gyc 11y ago
    I could be wrong, but I don't think Apple has a history of violating patents from practicing small software developers. Seems like they're pretty much only sued by patent trolls.