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.

Possible reasons for this message include:

Invalid or Expired Certificate:

The digital signature relies on a valid and unexpired certificate. If the certificate used to sign the email has expired or is invalid, verification fails.

Certificate Chain Issues:

If the email’s certificate is not in the trusted certificate authorities list or if there are issues with the certificate chain, verification may fail.

Tampered Content:

If the email content has been altered after the digital signature was applied, the signature cannot be verified.

The user isn’t always capable of verifying the signature in Microsoft office 365. we can’t verify the signature of files required to install your office product If they use a device that doesn’t have hardware compatibility for the office applications.

The consumer should improve the device with a working system to confirm the signature problems in Microsoft office 365/2021.

This “we’re sorry but we can’t verify the signature of files required to install your office product ” error is due to the installation of Microsoft office 365. The user would possibly have set up the software program without updating it or without verifying the signature and user have to we need to verify these signatures to keep your computer safe

This difficulty is resolved with the aid of cleansing all of the temporary net files within the gadget.

Delete those from the device after which download Microsoft workplace and check the Microsoft 365 updates.

[KB63363901]-How user Can verify the Signature?

1. First, open Microsoft 365 and click on settings

2. Next, click on account settings after which pick safety information finally.

3. Observe the instructions on the screen to verify your signature

4. If you are unable to verify your signature, that is probably because of a difficulty with the Microsoft office 365 installations

5. First, make sure that you have installed the trendy model of office 365/2021

6. In case you are nonetheless not able to verify your signature, please contact our aid group for further assistance.

we recommend you to chat with our online experts. I am sure they will guide you and help resolve this issue. You can also visit website for more details and more information.