我有一个带有 headers-more-nginx 模块的 Nginx 代理服务器，它将请求传递给 Exchange Server 2019。目前，每次我尝试连接到我的服务器时，Outlook 2019 都会陷入循环，要求输入凭据 – 它会要求输入密码，接受密码，然后再次询问。此问题在其他设备上重复出现。

Microsoft Store 中最新的 Outlook 运行正常。

此外，如果是 Netscaler 而不是 Nginx，一切正常，所以我认为 Nginx 配置错误，但我现在无法访问 Netscaler 配置。

我应该如何更改 Nginx 配置才能使其正常工作？

当前 nginx 配置：

http {
    server {
            listen 80;
            listen 443 ssl;
            server_name mail.mydomain.com;

            ssl_certificate /etc/ssl/certs/mydomain.crt;
            ssl_certificate_key /etc/ssl/certs/mydomain.key;
            ssl_trusted_certificate /etc/ssl/certs/mydomain.crt;
            ssl_session_timeout 5m;

            add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload;" always;

            location / {
                    proxy_pass_request_headers on;
                    keepalive_timeout 3h;
                    tcp_nodelay on;
                    client_max_body_size 3G;
                    #proxy_buffering off; # tried both on and off
                    #proxy_request_buffering off;
                    proxy_read_timeout 3600;

                    proxy_pass_header Date;
                    proxy_pass_header Server;
                    proxy_set_header Authorization $http_authorization;
                    proxy_pass_header Authorization;
                    proxy_set_header Connection "Keep-Alive";
                    proxy_http_version 1.1;
                    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                    proxy_set_header X-Forwarded-Proto $scheme;
                    proxy_set_header X-Forwarded-Server $host;
                    proxy_set_header X-Forwarded-Host $host:$server_port;
                    proxy_set_header Host $host;
                    proxy_set_header X-Real-IP $remote_addr;

                    more_set_input_headers 'Authorization: $http_authorization';
                    # I tried to use Nginx's domain as well as domain of Exchange server, no luck
                    more_set_headers -s 401 'WWW-Authenticate: Basic realm="mail.mydomain.com"';

                    proxy_pass https://exchange$request_uri;
             }
     }
}
upstream exchange {
    ip_hash;
    server exchangeip1:443;
    server exchangeip2:443;
}