Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heartman.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 22:52:13 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 45.60.247.68 (no PTR)
- 45.60.241.68 (no PTR)
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ha1.markmonitor.zone hostmaster.markmonitor.com 2025071401 7200 900 1209600 172800
Primary NS (mname)
ha1.markmonitor.zone
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2025071401
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
172800s
Nameservers (NS)
ha1.markmonitor.zone
ha2.markmonitor.zone
ha3.markmonitor.zone
ha4.markmonitor.zone
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
⚠ Public key (p=) missing in DKIM record for selector s1.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms19066177
- _rmduvu31lxu7ky1s5npgbpcq4803n9h
- Target: 0ed1fe018ae1bfc7193f514611b2c99dac03269d25
- SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ~all
Full email verification for heartman.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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