T 2.56 Inadequate description of files

If files intended for electronic transmission are not adequately described, the recipient is often not able to ascertain their origin, contents or purpose.

If several e-mails are received from the same sender that lack, or contain inadequate marking, an incorrect sequence in sending may lead to the misinterpretation of the messages.

Example:

Sender S sends an e-mail containing several files to recipient R. The next day, S detects that one file still contains some errors and subsequently sends a corrected version accompanied by a request to delete the previous e-mail. After R has deleted the previous e-mail, he/she becomes aware that the current e-mail contains only the corrected file, and nothing else.