Hello. A few months ago, folk on here kindly helped me fix my connection to Outlook accounts. But, suddenly, things have gone wrong... though I have done nothing with any settings. I get the message: "You are about to override how Thunderbird identifies this site." If I click on "Get Certificate", nothing happens. If I remove ".587" from the field, I get "Peer's Certificate is not recognised". But I can't get or send any emails. Does anyone have any suggestions, please? Thanks!