Can't access https despite port 443 is opened

This is my first time setting up a server and I've just installed a SSL cert. I have also made some changes to the iptable to allow access to 443. Below is the output of iptables -L

target     prot opt source         destination
ACCEPT     all  --  anywhere       anywhere        state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere       anywhere        state NEW tcp dpt:http
ACCEPT     icmp --  anywhere       anywhere
ACCEPT     all  --  anywhere       anywhere
ACCEPT     tcp  --  anywhere       anywhere        state NEW tcp dpt:ssh
ACCEPT     tcp  --  anywhere       anywhere        state NEW tcp dpt:smtp
ACCEPT     udp  --  anywhere       anywhere        state NEW udp dpt:smtp
ACCEPT     tcp  --  anywhere       anywhere        tcp dpt:urd
REJECT     all  --  anywhere       anywhere        reject-with icmp-host-prohibited
ACCEPT     tcp  --  anywhere       anywhere        state NEW tcp dpt:https

I also checked nmap by ssh'ing into the server and run nmap from the server itself.

Starting Nmap 5.51 ( http://nmap.org ) at 2016-04-15 15:31 SGT
Nmap scan report for <my.domain.ip>
Host is up (0.0000050s latency).
Not shown: 994 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
443/tcp  open  https
3005/tcp open  deslogin
3031/tcp open  epic

When I tried telnet [my.domain.ip] 443 remotely

Trying <my.domain.ip>...
telnet: connect to address <my.domain.ip>: Connection refused
telnet: Unable to connect to remote host

Lastly, I do not know if nginx.conf plays a part but below is a snippet of the code for the ssl for the domain

#include /etc/nginx/conf.d/*.conf;

server {
    listen          <my.domain.ip>:80;
    server_name     mydomain.com www.mydomain.com;
    index           index.html index.htm index.py;
    access_log      /var/log/nginx/mydomain.com.log;
    error_log       /var/log/nginx/mydomain.log.error;
    root            /home/fr/;
    charset         utf-8;

    #error_page 500 502 503 504 /custom_50x.html;
    #location = /custom_50x.html {
    #        internal;
    #}

    location / {
        uwsgi_pass  <my.domain.ip>:3031;
        include     uwsgi_params;
    }

    location /static {
        root        /home/fr/env/FRuler/fruler/;
    }
}

### for ssl  ###
server {
    listen          <my.domain.ip>:80;
    server_name     mydomain.com www.mydomain.com;
    index           index.html index.htm index.py;
    access_log      /var/log/nginx/mydomain.com.log;
    error_log       /var/log/nginx/mydomain.log.error;
    root            /home/fr/;
    charset         utf-8;


    location / {
        uwsgi_pass  <my.domain.ip>:3031;
        include     uwsgi_params;
    }

    location /static {
        root        /home/fr/env/FRuler/fruler/;
    }
}

server {
    listen 443 ssl;
    server_name     mydomain.com www.mydomain.com;
    ssl on;
    ssl_certificate /etc/ssl/mydomain/ssl.crt;
    ssl_certificate_key /etc/ssl/mydomain/server.key;
    server_name mydomain www.mydomain.com;
    access_log  /var/log/nginx/mydomain.com.log;
    error_log   /var/log/nginx/mydomain.log.error;
    location / {
        root /home/fr/;
        index index.html;
    }
}
### end of ssl ###

Any help is appreciated.

Order matters in iptables, rules are traversed sequentially.

REJECT     all  --  anywhere       anywhere        reject-with icmp-host-prohibited
ACCEPT     tcp  --  anywhere       anywhere        state NEW tcp dpt:https

After rejecting everything the subsequent rule opening port 443 for HTTPS will never be reached and have no effect. Your general reject rule should be last.

Can't access https despite port 443 is opened

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