DNS Record
There are several types of DNS records. Here are some of the most common ones:
A Record - This maps a hostname to an IPv4 address.
AAAA Record - This maps a hostname to an IPv6 address.
CNAME Record - This maps an alias hostname to another hostname.
MX Record - This specifies the mail exchange servers for a domain.
TXT Record - This contains text information about a domain, such as SPF records for email authentication.
SRV Record - This specifies the location of a service or server in a domain.
NS Record - This specifies the authoritative name servers for a domain.
There are other types of DNS records as well, but these are some of the most commonly used ones.
Some Important KB Article and Links are several types of DNS records. Here are some of the most common ones:
Check MX Lookup
https://mxtoolbox.com/MXLookup.aspx
https://toolbox.googleapps.com/apps/checkmx/
Check Blacklists
https://mxtoolbox.com/blacklists.aspx
Check DMARC
https://mxtoolbox.com/DMARC.aspx
Check DNS Lookup
https://mxtoolbox.com/DnsLookup.aspx