Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
celerosft.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 05:44:12 UTC · ↺ Refresh
MX Hostnames
- celerosft-com.mail.protection.outlook.com
MX Priorities
- celerosft-com.mail.protection.outlook.com: 10
A / AAAA Records
- 139.144.169.53 ↩ 139-144-169-53.ip.linodeusercontent.com
Mail Server IPs
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
sco-infoblox-05.celerosft.com itadmin.celerosft.com 219 10800 3600 2419200 900
Primary NS (mname)
sco-infoblox-05.celerosft.com
Admin Email (rname)
itadmin@celerosft.com
Serial
219
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
sco-infoblox-05.celerosft.com
gla-infoblox-02.celerosft.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:8.40.116.100 include:spf.protection.outlook.com include:spf.mandrillapp.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
7 records- MS=ms40851901
- autodesk-domain-verification=i_B7jmSnZnXqHk3a3NGw
- fkj8nvdstm5djnl74beka5vnm
- google-site-verification=4upXX7kW-z1Q_qSBEMxvEr94NE35hJXrDJ6Gu-GO4Qw
- apple-domain-verification=2TeR3AYif3Xcv8Ef
- SPFv=spf1 ip4:8.40.116.100 include:spf.protection.outlook.com include:spf.mandrillapp.com ~all
- MS=ms56224152
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