Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rosborough.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 16:58:23 UTC · ↺ Refresh
MX Hostnames
- rosborough-com.mail.protection.outlook.com
MX Priorities
- rosborough-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.49.23.144 (no PTR)
- 198.185.159.145 (no PTR)
- 198.49.23.145
- 198.185.159.144
Mail Server IPs
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.systemdns.com hostmaster.systemdns.com 1761083821 10800 3600 1209600 60
Primary NS (mname)
ns1.systemdns.com
Admin Email (rname)
hostmaster@systemdns.com
Serial
1761083821
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
60s
Nameservers (NS)
ns3.systemdns.com
ns1.systemdns.com
ns2.systemdns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s; pct=100; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for rosborough.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits