isfnet.org.uk.		30 IN SOA ns1.krystal.uk. admin.k-validator-kessel-lon1.krystal.uk. (
				2024040601 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

isfnet.org.uk.		30 IN TXT "v=spf1 ip4:77.72.1.42 +a +mx include:relay.k.io
include:_spf.google.com ~all"

isfnet.org.uk.		30 IN A	77.72.1.42

Mail exchangers:
isfnet.org.uk.		30 IN MX 10 alt4.aspmx.l.google.com.
isfnet.org.uk.		30 IN MX 10 alt3.aspmx.l.google.com.
isfnet.org.uk.		30 IN MX 5 alt2.aspmx.l.google.com.
isfnet.org.uk.		30 IN MX 5 alt1.aspmx.l.google.com.
isfnet.org.uk.		30 IN MX 1 aspmx.l.google.com.

Name servers:
isfnet.org.uk.		30 IN NS ns1.krystal.uk.
isfnet.org.uk.		30 IN NS ns2.krystal.uk.