Thank you for your input - looks like I will have to have a serious play
around.....
I also don't understand why you using a folder
/mnt/44864d9b-2a13-4bcf-a0d3-ee42099439ea and how this is mounted and
how this is related to Thunderbird?
This is not actually related to Thunderbird - just a large disk which is
used for storage and had a copy of the file I was attaching.
Off the top of my head I can't remember how it is mounted - it has been
there for a couple of years and attaching files never caused a problem
from there before.
What happen if you use a other external data storage device?
I used a remote SMB device - for a remote NAS - and tried attaching from
there - same error (with the device mapping included) but I could still
read/write and delete - again has never caused problems and still works
as expected except for attachments.
Why is here a sticky set? But that's not related to your problem you
describe.
Good question!!! I have no idea and I never knew anything about
"Stickies" till now. Never noticed them but then maybe I never actually
checked the permissions before.
Having said that though .thunder has a sticky and this was created by
the Icedove -> Thunderbird update as there wasn't any .thunder folder
before - I checked before doing the update and copied profile just in case.
Will get back with more after a good nights sleep
