Evolution has an Attachment Reminder plugin you can use to remind yourself to attach a file to an email. If it determines that you have not attached the file, it displays the following message:
Eranskinaren plugina gaituta baduzu, Evolution-ek gogoraraziko dizu fitxategia mezuan eranstea, hala egin ez baduzu. Ikusten badu fitxategia eranstea falta zaizula, honelako mezu bat bistaratuko du: