[Bug 310815] New: Warning that deleting an attachment is irreversible

[Bernd Oliver Sünderhauf]

https://bugs.kde.org/show_bug.cgi?id=310815

            Bug ID: 310815
          Severity: wishlist
           Version: 4.9.3
          Priority: NOR
          Assignee: kdepim-bugs at kde.org
           Summary: Warning that deleting an attachment is irreversible
    Classification: Unclassified
                OS: Linux
          Reporter: pancho.mz at riseup.net
          Hardware: Chakra
            Status: UNCONFIRMED
         Component: general
           Product: kmail2

When deleting an attachment, a confirmation dialog is shown warning that
"Deleting an attachment might invalidate any digital signature on this
message."
This is inappropriate and confusing on mails that aren't digitally signed at
all.
So the annoyed user will tend to switch the irrelevant warning off (checking
'Do not ask again').
This however means that there won't be a confirmation dialog at all, when
deleting attachments, even though this is an irreversible action.

Ideally, a digital signature should be discovered and the confirmation dialog
should emit an appropriate warning.

So if the message is digitally signed, the wording could be as follows:
"Do you really want to delete the %n selected attachment/s?
Once deleted, it/they cannot be restored.
Also, this might invalidate the digital signature of this message."

However, if the message is not digitally signed, the wording should be just:
"Do you really want to delete the %n selected attachment/s?
Once deleted, it/they cannot be restored."

Reproducible: Always

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