[rt-users] 'Everyone' group is missing from upgraded RT installation

[Ken Johnson]

I recently upgraded an RT installation from 3.4.5 to 4.0.7, in parallel to
the original installation, and am still testing RT 4.0.

In general things look good now, but I ran in to a difficulty when trying to
allow rt-mailgate to create new tickets.

As I understand it, I need to allow ticket creation for the Everyone group
if 'outside' email users are to create new tickets.  Unfortunately, I don't
have an Everyone group.  OK, I can add one.  I tried looking here:

https://github.com/bestpractical/rt/blob/stable/etc/initialdata

For information on the characteristics that this group should have, but
struck out.

Where should I look to find out how to set this group up properly?

Ken