Thank you David, the update you posted worked perfectly for me.
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https://bugs.launchpad.net/bugs/708382
Title:
cannot create "custom" preferred applicati
Looks like this has not been commented on in a few days, but I am still
experiencing the problem.
My issue, however, is only with the email setting. I uninstalled
Evolution to see if that would help, but now I just don't have anything
associated with the email setting in Preferred Applications.
I
