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No access to email after upgrade.

Thunderbird E-mails et messages
christ1 a répondu il y a 1 an
john.davies228
john.davies228

I now get the message "Certificate for the mailbox is not valid for that server. Someone could be trying to impersonate the server and you should not continue". My provider tells me that the certificate is used for a number of emails. Any suggestions please?

I now get the message "Certificate for the mailbox is not valid for that server. Someone could be trying to impersonate the server and you should not continue". My provider tells me that the certificate is used for a number of emails. Any suggestions please?

Toutes les réponses (3)

christ1
christ1
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Please post a screenshot of the error. https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

john.davies228
john.davies228 Auteur de la question

Thunderbird only shows the message once and it is not there long enough for a screen shot, regrettably. I have forgotten to mention that I am running Ubuntu.

christ1
christ1
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I now get the message "Certificate for the mailbox is not valid for that server.

Can you provide the more specific error code shown in the error pop-up?

Are you running any kind of anti-virus software?