Comment 54 for bug 1748895

I get over the problem by inserting a line for claws-mail in apparmor profile for senddoc, and specifying claws-mail (with full path) in Options-Tools-...Email.

A better option would be to rewrite the xdg-email code in senddoc along the lines of the block for claws|sylpheed (though in LO, the 'To' field is presumably not required ...). This would make the default generally useful for all email clients, where currently it simply doesn't attach, which is the whole point of senddoc ...

I'll continue to hope that Ubuntu 22.04 xdg-utils will fix the attachment problem, since it affects scanning to email as well as LO; but there'' be many LO users who remain on current (non-functioning) xdg-email maitto: style. They should be helped, even if the rest of us do find salvation ...