zlacker

Perhaps it was more 'my mail is stored locally once I download it'?

I use Thunderbird with pop3 settings that ask remote mail server to delete messages once downloaded. Then authenticated SMTP account to send.

No big reason, just what I do.

Edit: I believe that my shell-account provider is deleting those messages once downloaded, and not copying them somewhere else, but I have no guarantee of that as pointed out lower in the tree from the parent post.

If the gentleman is using a mail server on his PC that would be interesting as you say.