lcglondon.co.uk.	30 IN SOA ns1.krystal.uk. admin.demo.squid-lon.krystal.uk. (
				2025022501 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

lcglondon.co.uk.	30 IN TXT "v=spf1 ip4:77.72.1.47 ip4:77.72.2.95 include:relay.k.io a
mx ~all"

lcglondon.co.uk.	30 IN A	77.72.2.95

Mail exchangers:
lcglondon.co.uk.	30 IN MX 20 mx2.krystal.uk.
lcglondon.co.uk.	30 IN MX 10 mx1.krystal.uk.

Name servers:
lcglondon.co.uk.	30 IN NS ns1.krystal.uk.
lcglondon.co.uk.	30 IN NS ns2.krystal.uk.