Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
petro.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 00:55:53 UTC · ↺ Refresh
MX Hostnames
- mxb-0024f101.gslb.pphosted.com
- mxa-0024f101.gslb.pphosted.com
MX Priorities
- mxa-0024f101.gslb.pphosted.com: 10
- mxb-0024f101.gslb.pphosted.com: 10
A / AAAA Records
- 54.165.206.1 ↩ ec2-54-165-206-1.compute-1.amazonaws.com
Mail Server IPs
- 148.163.153.176 ↩ mx0b-0024f101.pphosted.com
SOA Record
Raw SOA
ns1.domaindiscover.com hostmaster.tierra.net 2026020301 7200 1800 604800 28800
Primary NS (mname)
ns1.domaindiscover.com
Admin Email (rname)
hostmaster@tierra.net
Serial
2026020301
Refresh
7200s
Retry
1800s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns1.domaindiscover.com
ns2.domaindiscover.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:148.163.149.177 ip4:148.163.153.176 include:spf-0024f101.pphosted.com include:amazonses.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- iContact1749745
- duo_sso_verification=dBp3ncaM5RLdo0ozS03JdGLwFXsrxYvCooTuOwB5Ps5n5baduRUkcPblSXHs7ogh
- apple-domain-verification=8puX5fjTAyM9dsDd
- _ux23s7n8sw09a4axbrjuuqhiz0nfqzh
- SPFv=spf1 ip4:148.163.149.177 ip4:148.163.153.176 include:spf-0024f101.pphosted.com include:amazonses.com ~all
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