MX records is a DNS record only used for emails. It is the only email DNS record, and can be used in combination with other records.Unlike other DNS, you can create duplicates, pointed to different destinations for failsafe reasons. MX records typically do not have any Host values.
MX Toolbox – DKIM Record Lookup
The DKIM Record tool will test a domain name and selector for a valid published DKIM key record. DomainKeys Identified Mail (DKIM) defines a domain-level digital signature authentication framework for email by permitting a signing domain to assert responsibility for a message in transit. DKIM authenticates the reputation and identity of the sender and their…
Port Checker …
Port Checker is a simple and free online tool for checking open ports on your computer/device, often useful in testing port forwarding setup on a machine. For instance, if you’re facing connection issue with a program (email, IM client etc) then it may be possible that the port required by the application is getting blocked…
MX Toolbox – DMARC Check Tool
The DMARC Record Lookup / DMARC Check is a diagnostic tool that will parse the DMARC Record for the queried domain name, display the DMARC Record, and run a series of diagnostic checks against the record
MX Toolbox – SPF Records Lookups
Sender Policy Framework (SPF) records allow domain owners to publish a list of IP addresses or subnets that are authorized to send email on their behalf. The goal is to reduce the amount of spam and fraud by making it much harder for malicious senders to disguise their identity.
IP Chicken …
What is my IP address? Free public IP lookup.
Network Port Checker & Scanner Tool
Port scanner tool can be used to identify available services running on a server, it uses raw IP packets to find out what ports are open on a server or what Operating System is running or to check if a server has firewall enabled …