Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
r-o.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 17:35:55 UTC · ↺ Refresh
MX Hostnames
- ro-com0c.mail.protection.outlook.com
MX Priorities
- ro-com0c.mail.protection.outlook.com: 10
A / AAAA Records
- 20.225.226.48 (no PTR)
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.r-o.com technology.r-o.com 2009010357 43200 3600 1209600 180
Primary NS (mname)
ns1.r-o.com
Admin Email (rname)
technology@r-o.com
Serial
2009010357
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns2.r-o.com
ns3.r-o.com
ns5.r-o.com
ns6.r-o.com
ns1.r-o.com
ns4.r-o.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:40.84.187.56 ip4:13.84.9.136 include:mail.zendesk.com include:50dafe.workshop-spf.net include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.ultipro.com include:cvent-planner.com include:spf-us.emailsignatures365.com include:us._netblocks.mimecast.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- google-site-verification=G1Yf_OD-XmwgIZT6l6iK-EXM6pTqJuT0GUmWOYKgtYI
- google-site-verification=oWZ6AovqnPWiC4PS_k9OQAGyxVOb0ShX_fSREaB4RA8
- docusign=7846e515-98f7-49bd-90cd-9cb4e10468fe
- dmlld3BvaW50X2F6dXJlX2NvbW1vbg==
- SPFv=spf1 ip4:40.84.187.56 ip4:13.84.9.136 include:mail.zendesk.com include:50dafe.workshop-spf.net include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.ultipro.com include:cvent-planner.com include:spf-us.emailsignatures365.com include:us._netblocks.mimecast.com -all
- ZOOM_verify_o1iq2BSiSBmYJZ3PuFtTqw
- neat-pulse-domain-verification-kXm932X=febbad1b-4454-49b2-800a-ccdea6e7ba3f
- miro-verification=5005969468ef4653a677b216e147ceebbb0e5d0c
- apple-domain-verification=1HGg0rhh5ErNkEqt
- dell-technologies-domain-verification=r-o.com_17880720-27a3-4961-b211-62ca814eab82_1754583498
- asv=537c86b4bb9a638bc54abff18dd6b3cb
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