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

Can't send mail from outlook stnp

  • 3 replies
  • 1 has this problem
  • 7 views
  • Last reply by sfhowes

more options

Everything I have is updated. I got a new address fro outlook and get this error message. the smtp.office365.com is set correctly. Win 10 , Thunderbird Vs 91.1.0


account1 (pop3) outlook.office365.com:995 SSL/TLS Normal password smtp.office365.com:587 STARTTLS Normal password true


help ?

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.

Everything I have is updated. I got a new address fro outlook and get this error message. the smtp.office365.com is set correctly. Win 10 , Thunderbird Vs 91.1.0 account1 (pop3) outlook.office365.com:995 SSL/TLS Normal password smtp.office365.com:587 STARTTLS Normal password true help ? 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.

All Replies (3)

more options

That error seems to be related to the use of Smartcards. Do you have one?

more options

I own smart cards for storage . I do not have them in my laptop at the moment.

more options

Maybe there is some smartcard software that is installed, such as drivers, that is causing the error even when the card isn't connected.