Hello, I keep getting this error message provided in file attached to this message, saying that "the message could not be sent becuse connecting to Outgoing server (SMTP) failed. I get this error message when I try to send emails from two gmail addresses in Thunderbird, and I can send and receive email fine from non gmail addresses. I also try to send an email from another computer in the same home network with another gmail address, and I get the same problem. I have already tried to remove and add again my gmail addresses in thunderbird, and problem still occurs. And when I try to connect directly from the web browser, I don't have this problem, and I also reset my home box, and issue still occurs, can you help please ? I also double check my outgoing server settings, and I m sure they are correct: Description: Google Mail Server Name: smtp.gmail.com Port: 465 User Name: mygmailaddress@gmail.com Authentication method: OAuth2 Connection Security: SSL/TLS Regards