Checking signature on thebat email client

[The Final Cut]

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Hello, how can I make gnupg look on internet for signature if I want to verify signature from users?

When I clic the check icon, a popup accur saying can't verify.  Is it possible to make it look on key websites?

thanks

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The FinalCut
finalcut at videotron.ca
TheBat 3.0.2.10
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