mail, getting it back
Hello all,
My wife owns a 13" Macbook Pro (13-inch, early 2011), original operating system Snow Leopard 10.6.8.
She recently converted to El Capitan 10.11.2, did not like the sluggish performance at all and wanted to go back to Snow Leopard.
Before I reinstalled Snow Leopard I bought a Lacie HD and backed everything up (time machine) from El Capitan. Unfortunately I do not have a backup from the original Snow Leopard.
I have been unable to get her calendar back and her (8000+) emails. The calendar is not all that important, the emails are.
All her emails (*.emlx) are still on the HD, I can see and access them all (in finder). However, I cannot get them back in her current mailboxes. Tried tricking, dragging, copying, pasting, renaming boxes and reinstalling, rebuilding, import mailboxes, migration assistant, new boxes, downloaded emlx to mbox converter, nothing worked. Talked for over two hours with two Apple persons yesterday (one a mail expert from Chicago), they had suggestions, took control of the MacBook (remote advisor) but did not achieve anything either.
Does anybody know how to get mail back from El Capitan into Snow Leopard mail boxes? I guess this is a fairly new brain-teaser. Help would be greatly appreciated!!
ps I am new to this, my apologies if my posting is in the wrong community
MacBook Pro