qna.solutions.		30 IN SOA ns-cloud-b1.googledomains.com. cloud-dns-hostmaster.google.com.
(
				4          ; serial
				21600      ; refresh (6 hours)
				3600       ; retry (1 hour)
				259200     ; expire (3 days)
				300        ; minimum (5 minutes)
				)

qna.solutions.		30 IN TXT "v=spf1 include:_spf.google.com ~all"

Mail exchangers:
qna.solutions.		30 IN MX 5 alt1.aspmx.l.google.com.
qna.solutions.		30 IN MX 10 alt4.aspmx.l.google.com.
qna.solutions.		30 IN MX 5 alt2.aspmx.l.google.com.
qna.solutions.		30 IN MX 10 alt3.aspmx.l.google.com.
qna.solutions.		30 IN MX 1 aspmx.l.google.com.

Name servers:
qna.solutions.		30 IN NS ns-cloud-b2.googledomains.com.
qna.solutions.		30 IN NS ns-cloud-b1.googledomains.com.
qna.solutions.		30 IN NS ns-cloud-b4.googledomains.com.
qna.solutions.		30 IN NS ns-cloud-b3.googledomains.com.