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How do I turn on the warning that messages are about to be permanently deleted when I hit Shift Delete

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I used to get a warning if I clicked on an email and hit Shift Delete that it would permanently remove the email from my computer. I turned the warning function off. How do I turn it back on again?

I used to get a warning if I clicked on an email and hit Shift Delete that it would permanently remove the email from my computer. I turned the warning function off. How do I turn it back on again?

Chosen solution

Tools/Options/Advanced/General/Config. editor, double-click the preference mail.warn_on_shift_delete to change it from true to false, close the editor, OK to close Options.

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Chosen Solution

Tools/Options/Advanced/General/Config. editor, double-click the preference mail.warn_on_shift_delete to change it from true to false, close the editor, OK to close Options.