Zone apex
Start of authority
Email
Serial
1772215311
Refresh
4h 33m 4s
Retry
34m 8s
Expire
12d 3h 16m 16s
Negative cache TTL
42m 40s
Question and response
Question
dig s433.smtp-spf.sureserver.com. SOA
Answer
s433.smtp-spf.sureserver.com. 2560 SOA ns1.s433.sureserver.com. hostmaster.s433.smtp-spf.sureserver.com. 1772215311 16384 2048 1048576 2560
Authority
s433.smtp-spf.sureserver.com. 25920 NS ns1.s433.sureserver.com.
s433.smtp-spf.sureserver.com. 25920 NS ns2.s433.sureserver.com.
Additional
ns1.s433.sureserver.com. 14400 A 192.252.154.25
ns2.s433.sureserver.com. 14400 A 192.252.155.25