Domain Email Notes & DNS

In this article

Alternative Email Server Config

When connecting from Yahoo to GreenGeeks cPanel webmail, you cannot use the ‘normal’ cPanel mail config, e.g

mail.your-domain.co.uk

It simply does not work!

So GreenGeeks gave me this config to use instead and I have used this successfully to access GreenGeeks webmail via Yahoo.

				
					Incoming Server: amsr101.websitehostserver.net
Incoming Port: 993 for IMAP, 995 for POP3

Outgoing Server: amsr101.websitehostserver.net
Outgoing Port: 465 (587 should also work)

SSL/TLS encryption should be enabled for incoming and outgoing mail
Password Authentication enabled

Username: user@domain.com
Password: [user@domain.com's password]
				
			

The details can also be used to access any domains webmail without using the actual domain.  Useful if you have not completed a domain transfer but need to setup and access domain email in advance of the domain name server switch,

Viewing and flushing local DNS

Windows 10/11

Open a CMD window.

Lookup a domain’s IP address

				
					C:\Users\username>nslookup mydomain.co.uk


				
			

Flush the local DNS cache

				
					C:\Users\username>ipconfig /flushdns

				
			

Ubuntu 22.04

Open a terminal window.

Lookup a domain’s IP address

				
					user:~ $ nslookup mydomain.co.uk
Server:		127.0.0.23
Address:	127.0.0.23#23

Non-authoritative answer:
Name:	mydomain.co.uk
Address: 212.0.233.174


				
			

List local DNS cache stats

				
					user:~ $ resolvectl statistics
DNSSEC supported by current servers: no

Transactions               
Current Transactions: 0
  Total Transactions: 26593
                           
Cache                      
  Current Cache Size: 67
          Cache Hits: 1456
        Cache Misses: 5248
                           
DNSSEC Verdicts            
              Secure: 0
            Insecure: 0
               Bogus: 0
       Indeterminate: 0



				
			

Flush the local DNS cache

				
					user:~ $ resolvectl flush-caches
user:~ $ 
user:~ $ resolvectl statistics
DNSSEC supported by current servers: no

Transactions               
Current Transactions: 0
  Total Transactions: 26677
                           
Cache                      
  Current Cache Size: 0
          Cache Hits: 1472
        Cache Misses: 5278
                           
DNSSEC Verdicts            
              Secure: 0
            Insecure: 0
               Bogus: 0
       Indeterminate: 0