Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
petrosys-usa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 14:21:51 UTC · ↺ Refresh
MX Hostnames
- petrosysusa-com02b.mail.protection.outlook.com
MX Priorities
- petrosysusa-com02b.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1804.awsdns-33.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1804.awsdns-33.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1099.awsdns-09.org
ns-1804.awsdns-33.co.uk
ns-677.awsdns-20.net
ns-105.awsdns-13.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ptr ip4:203.3.79.23 ip4:203.3.79.16 mx:mail.petrosys.com.au ip4:67.227.183.113 include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- 8TVu1lbo9PGjvePeAItriBfrkyVPCnNA
- MS=ms78708808
- knowbe4-site-verification=cdb7ffb4a9b88598784f2bb837355774
- SPFv=spf1 a mx ptr ip4:203.3.79.23 ip4:203.3.79.16 mx:mail.petrosys.com.au ip4:67.227.183.113 include:spf.protection.outlook.com -all
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