STRANGE, RIGHT?
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They are different problems because I doubt that iTunes has been able to modify Mail, that has nothing to do with iTunes.
As you are running 10.7.4, download and install OS X 10.7.5, the most recent Lion version > http://support.apple.com/kb/dl1582 After installing the update, you should be able to run Mail
I downloaded the latest version of iTunes, and now my mail won't open. It displays this message now-You have Mail version 5.3 (1283/1278). It can’t be used on Mac OS X Version 10.7.4 (Build 11E53). For more information, click the Help button. Strange.
