The targeted email client (perhaps one different from your "daily driver") can probably be configured to automatically apply a default template (title: YY/MM/DD backup) and you may discover it will often be desirable to have the option to add other notes-to-self into the message body. Also, once the mail client has been triggered via an initial SendTo operation, you'll be free to browse across directories and drag-n-drop further cherrypicked files.
The thing is that I would like it to work exactly as described, no need for further picking, files, directories, editing mail body...
so just this exactly:
1. Send one or more selected files as attachments on my own e-mail address
with current date as mail subject and "Backup" as mail body text.
If folders or folders + some files selected:
2. Compress all selected, give the that archive file name in format
current_date.tar.gz, and then send it as attachment on my e-mail address
with current date as mail subject and "Backup" as mail body text..
If someone know one-liner (a bit more complex I don't know how to write it) that could be put in Thunar Context menu to do this, I would appreciate it :)