shankar-bavan

SPF record check

• Open the command line (Start > Run > cmd).
• Enter nslookup -type=txt followed by a space and a domain or hostname, for example, nslookup -type=txt google.com.
• If an SPF record exists, the result will be something like this: v=spf1 include:_spf.google.com ~all.
• If there are no results or no v=spf1, then there is a problem getting the record for the domain, or it doesn’t exist.

DKIM record check

jflopezfernandez

#!/usr/bin/nft -f

# Delete all previously established rules
flush ruleset

# Local Area Network IPv4 Addresses
define server1_ipv4 = 192.168.1.2
define server2_ipv4 = 192.168.1.3

table inet firewall {