Claws mail -> move mail (inbox and other folders) to card

I am using Claws mail to read my gmail through on my eeeXubuntu on eee pc.

It is very compact and for me is better than ThunderBird.

When I created account by default, the mail client created folder named "gmail" in my home,
that uses a lot of space even with plain text formatted messages inside.

To resolve , I decided to move mail on sd card I have.

That way I just typed following three strings in bash shell,
and space on SSD disk was freed:

cd ~
mv gmail /media/disk/
ln -s /media/disk/gmail gmail