如果提示“SSL 接收到一个超出最大准许长度的记录。” 错误代码“ssl_error_rx_record_too_long”说明少了“ssl on;”这一行. 后面的server.crt server.key是数字证书，具体可以参照openssl做证书

server {
listen 443;
server_name mail.huozhe.com;ssl on;
ssl_certificate server.crt;
ssl_certificate_key server.key;location / {
proxy_pass https://192.168.0.2:443;
proxy_set_header Host $host:443;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Via "nginx";

}
 

解决方法：在server_name后面加上ssl on