Microsoft Outlook had problems encrypting this message because the following recipients had missing or invalid certificates, or conflicting or unsupported encryption capabilities. Get one for free from one of the providers. You do not have a certificate for the “from” email address. I am concerned that my PC may be suffering a relapse.Microsoft Outlook cannot sign or encrypt this message because you have no certificates which can be used to send from your email address. I again get the No Certificate Available error message.Īny idea how to get Outlook back to working with my certificates?īTW: I set up my email accounts with certificates and encryption because my wife and I were having a major problem cyber attacks on our PCs and with MITM attacks on our email.
If I click the Change Settings button and then click on the button to choose a Signing Certificate then I get an error message statiing No Certificates Available.Īt File/Options/TrustCenter/Trust Center Settings/Email Security when I click on Import/Export Digital Certificates and attempt to Export your Digital ID to a file by clickiong on Select. If I attempt to change the security setting from Automatic to one of the account- specific S/Mime Settings the Invalid Certificate message immediately pops up again. When I click on Automatic I can see all three mail accounts listed in the form My S/Mime When I click on Change Security Settings button I see that Add digital signature is checked (as it should be). Two days ago I started getting an Invalid Certificate message (Microsoft Outlook cannot sign or encrypt this message because there are no certificates which can be used.) for every email I sent from each of the three accounts. All three certificates are valid until 2020.
I have been using these certificates with these accounts since April, signing all messages andĮncrypting messages from one account. I have three digital certificates from Comodo, one for each account.
0 kommentar(er)
