surl.to.		30 IN SOA ns0.thundercloud.uk. pyxage.gmail.com. (
				2025031601 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

surl.to.		30 IN TXT "v=spf1 ip4:149.255.62.77 include:relay.thundermail.uk
ip4:149.255.62.169 include:mailgun.org ~all"

surl.to.		30 IN A	149.255.62.77

Mail exchangers:
surl.to.		30 IN MX 10 mxa.mailgun.org.
surl.to.		30 IN MX 10 mxb.mailgun.org.

Name servers:
surl.to.		30 IN NS ns0.thundercloud.uk.
surl.to.		30 IN NS ns1.thundercloud.uk.