Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
serco-na.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 18:47:07 UTC · ↺ Refresh
MX Hostnames
- sercona-com01c.mail.protection.outlook.com
MX Priorities
- sercona-com01c.mail.protection.outlook.com: 10
A / AAAA Records
- 208.156.66.51 (no PTR)
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
snans01.serco-na.com admin.serco-na.com 2026033101 900 900 900 900
Primary NS (mname)
snans01.serco-na.com
Admin Email (rname)
admin@serco-na.com
Serial
2026033101
Refresh
900s
Retry
900s
Expire
900s
Minimum TTL
900s
Nameservers (NS)
snans01.serco-na.com
snans02.serco-na.com
snans03.serco-na.com
snans04.serco-na.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:64.92.163.68/32 ip4:64.92.163.69/32 ip4:216.52.6.89 ip4:66.77.160.179/32 a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com include:_spf.eemsg.mail.mil ip4:20.119.174.191 ip4:20.230.106.230 ip4:20.114.186.35 ip4:20.119.207.133 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- atlassian-domain-verification=ho8iS2MwDQhT/GUMJPWkSVIZ4lQXkOxPX0ryKe0RR2/pCeazLbOcKs6FsWtHB2VX
- MS=ms83987639
- duo_sso_verification=OgEqXRXm8S1eA4lberzN4S6NwpKBFNY3g9lGLOWtQhKpFkR95JOxkUe2T1eb0UBZ
- atlassian-domain-verification=anjETLPxJ7w25WaZbsheVPzX63O7ls8WrscH7oVaBcQaNaBw9TiILbsdAB1SzNnJ
- HahOyTV54xruObMBH77bnSo+8t7dYoc/NdV6blXxhG17gVJJOmbtg67+CEQ1Vk5mU/Y/wVV56mF2EExgq3UwAg==
- SPFv=spf1 include:spf.protection.outlook.com ip4:64.92.163.68/32 ip4:64.92.163.69/32 ip4:216.52.6.89 ip4:66.77.160.179/32 a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com include:_spf.eemsg.mail.mil ip4:20.119.174.191 ip4:20.230.106.230 ip4:20.114.186.35 ip4:20.119.207.133 ~all
Full email verification for serco-na.com
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