SOA
Start of Authority
Primary NS
Mailbox
hostmaster.markmonitor.com
Serial
2026102101
Refresh
28800
Retry
7200
Expire
604800
Minimum TTL
3600
TXT
TXT Records
v=spf1 -all
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
A