location of apple mail preferences 10.11

other folders I manually created in the root of users have the staff, the old admin account & everyone read only but is not to hard to fix amend those attributes in finder.

rebooted and all permissions on the Apple default folders in the new primary admin account look as they should with the new admin account read write, and everyone no access.

I had a brain wave to speed things up to just do that on the root of the old #2 admin user, I realised I would add read only for everyone but was too late!!

every folder I wanted to move across I added my new admin account and applied to enclosed items while removing the old admin account.

I then logged into the new admin account on 501 and opened the old admin /users/#2 folder.

manually copied docs, photos, music, iMessages, delved into containers and copied all the mail items too which may not have been wise.

deleted the account with uid 501 rebooted, created a new account which got 501 and added to the admin group.

logged out the old and into the new admin account, opened system prefs control clicked the name of the old account and changed the account name and name of its home directory to #2 its uid was 504.

created a new admin group added the needed admin accounts and added to the old admin account /users folder.

Location of apple mail preferences 10.11