SOA
Start of Authority
Primary NS
Mailbox
hostmaster.smartest.college
Serial
2025055182
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
3600
MX
Mail Exchangers
TXT
TXT Records
0 issue \"letsencrypt.org\"
v=spf1 mx ip4:37.97.129.173/32 include:mail.smartest.email -all
A
IPv4 Addresses
AAAA