After Thunderbird updated to 52.9.1 32 bit, running Window 10 build 1803, I cannot receive or send messages. I get the error message: "Sending of password for user YourName did not succeed. Mail server pop.verizon.net responded: [SYS/TEMP] Server error - Please try again later." I manually added Thunderbird to Windows Defender Firewall exceptions, but it still won't receive or send messages. My antivirus software is TrendMicro. Thank you for your help.