This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Error sending email (smart card required)

more options

Hi,

When trying to send an e-mail, suddenly I can't do it on account of this error appearing:

"Sending of the message failed. A PKCS #11 module returned CKR_GENERAL_ERROR, indicating that an unrecoverable error has occurred. The configuration related to smtp.office365.com must be corrected."

Basically, Thunderbird is asking me to insert a smart card in order to send an e-mail. How do I revert this?

Hi, When trying to send an e-mail, suddenly I can't do it on account of this error appearing: "Sending of the message failed. A PKCS #11 module returned CKR_GENERAL_ERROR, indicating that an unrecoverable error has occurred. The configuration related to smtp.office365.com must be corrected." Basically, Thunderbird is asking me to insert a smart card in order to send an e-mail. How do I revert this?

All Replies (1)

more options

I'm using Thunderbird 86.0b2 (32-bit).