Comment 81 for bug 87101

We have the same problem with informations like a memo or other stuff that only needs to be in a mail attachment and not stored permanently on disk.

Is there not a possibility to integrate this feature in the advanced configuration editor as attachment.readonly true or false so if the sysadmin has this support request, you can turn the readonly flag to false?

This would be a great addition and would facilitate the editing and answering of memos and other company related stuff that just needs to be edited in the attached file and sent back to the sender.