Oh well - the problem persists. It does appear that Thunderbird needs
some setting on the fileshares that is not obvious to me.
The one folder > /mnt/44864d9b-2a13-4bcf-a0d3-ee42099439ea
is on a local hard drive and is mounted through fstab: (As far as I
remember this was initally mounted from "disks" ages ago when it was
added to the system.
/dev/disk/by-uuid/44864d9b-2a13-4bcf-a0d3-ee42099439ea
/mnt/44864d9b-2a13-4bcf-a0d3-ee42099439ea auto
nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=Big%20Disk 0 0
BTW I have tried changing the mount as per next line with no change to
the operation (in case it was to do with /mnt folder name length):
/dev/disk/by-uuid/44864d9b-2a13-4bcf-a0d3-ee42099439ea /mnt/Z auto
rw,nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=Big\040Disk 0 0
The other folders causing problems are on a remote NAS and strangely I
get slightly different (temporary folder) error messages depending on
the method of access (OpenVPN direct from my PC to NAS, VPN between 2
routers or mapped drive through port 445 avoiding NetB)
But for now I will concentrate on the local hard drive.
One other issue now with Thunderbird that didn't occur with Icedove is
that clicks on links in e-mails don't do anything and have to be copied
- I won't create a new bug report for this yet because i may or may not
be down to the same problem.
I have all access to folders on here - tried to attach the file called
"rim.jpg" from Z:/Bluebell and that failed
root@jupiter2:/mnt# getfacl Z
# file: Z
# owner: jimc
# group: paws4pets
user::rwx
group::rwx
other::---
root@jupiter2:/mnt# cd Z/temp
root@jupiter2:/mnt/Z/temp# cd ..
root@jupiter2:/mnt/Z# getfacl temp
# file: temp
# owner: jimc
# group: paws4pets
user::rwx
group::rwx
other::rwx
root@jupiter2:/mnt/Z# cd temp
root@jupiter2:/mnt/Z/temp# cd Bluebell
root@jupiter2:/mnt/Z/temp/Bluebell# ls
rim code.jpg rim.jpg trim.jpg TyreSize.jpg wheel.jpg
root@jupiter2:/mnt/Z/temp/Bluebell# getfacl trim.jpg
# file: trim.jpg
# owner: jimc
# group: jimc
user::rw-
group::r--
other::r--
Any quick pointers really would be appreciated because understanding all
the implications of the mount options (especially nosuid??) is really
taxing my ancient brain!
So many people have reported issues with Thunderbird and network
attachments over the years and yet nobody has come up with an answer
that I can find.