Как обслуживать Autodiscover.xml с помощью Nginx

Я пытаюсь обслуживать файл Autodiscover.xml с помощью Nginx:

Ниже моя конфигурация:

upstream autodiscoverexamplecoukbackend {
        server unix:/var/run/php-fcgi-autodiscoverexamplecouk.sock;
}

server {
        listen 80;
        listen 443 ssl;

        ssl_certificate /etc/letsencrypt/live/autodiscover.example.co.uk/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/autodiscover.example.co.uk/privkey.pem;

        server_name autodiscover.example.co.uk;
        root  /var/www/vhosts/autodiscover.example.co.uk/htdocs;

        index index.html;

        error_log /var/www/vhosts/autodiscover.example.co.uk/error.log;
        access_log /var/www/vhosts/autodiscover.example.co.uk/access.log combined;

        #location ^~ /autodiscover/ {
                #index autodiscover.php;
                #rewrite ^/.*$ /autodiscover.php last;
        #}

        location ~* /autodiscover/ {
                rewrite ^/autodiscover/autodiscover\.xml$ /autodiscover/autodiscover.php last;
        }

        location = /robots.txt {
                allow all;
                log_not_found off;
                access_log off;
        }

        location ~ \.php$ {
                try_files $uri =404;
                include /etc/nginx/fastcgi_params;
                fastcgi_pass autodiscoverexamplecoukbackend;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                fastcgi_param PATH_INFO $fastcgi_script_name;
                fastcgi_intercept_errors on;
        }
}

Проблема в том, что он не может обслуживать файл Autodiscover.xml при запросе с верхний регистр A

Если кто-нибудь может помочь, это было бы здорово.

Когда запрашивается Autodiscover.xml, он должен повторно отправить его на autodiscover.php, который вернет .autodisocver.xml. Это сделано для того, чтобы обслуживать разные домены.

Файл находится в /autodiscover/autodiscover.php

журнала ошибок Nginx:

2017/01/25 21:34:12 [error] 29385#29385: *93 open() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"
2017/01/25 21:34:13 [error] 29385#29385: *94 open() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"
2017/01/25 21:45:05 [error] 29385#29385: *108 stat() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"
2017/01/25 21:45:05 [error] 29385#29385: *109 open() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"
2017/01/25 21:56:15 [error] 29485#29485: *121 open() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"
2017/01/25 21:56:16 [error] 29485#29485: *122 open() "/var/www/vhosts/autodiscover.example.co.uk/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 13.67.59.89, server: autodiscover.example.co.uk, request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "autodiscover.example.co.uk"