“Can’t verify The Signature” installation error in office 365/2021/2019

Tue, 03 Sep 2024 08:29:44 +0000

When you pops up the “Can’t verify the signature” in Office 365, it typically refers to an issue we are sorry but we can’t verify the signature office of an email message. This can happen if the sender’s signature cannot be confirm or if there are problems with the certificate uses to sign the email.