Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rcstn.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 01:17:23 UTC · ↺ Refresh
MX Hostnames
- rcstn-net.mail.protection.outlook.com
MX Priorities
- rcstn-net.mail.protection.outlook.com: 0
A / AAAA Records
- 104.17.67.73 (no PTR)
Mail Server IPs
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns43.worldnic.com namehost.worldnic.com 125120812 10800 3600 604800 3600
Primary NS (mname)
ns43.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125120812
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns44.worldnic.com
ns43.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ipv4:96.5.44.239 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- wz9kb4wq87yq7c8kw6yk1fz1fhv9p9v7
- openai-domain-verification=dv-wMck3naLjRc03GQpqChBmBPw
- _t69s0larzuwrfqcp0c01fkndaqvqt08
- 04.12.2023
- SPFv=spf1 ipv4:96.5.44.239 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com -all
- google-site-verification=rqqO-XTItPD39SaLH7N3NS6bzrqOis5VFIrjLB4rclU
- google-site-verification=tyTwdGuhX4g5tu3DvU_jSRntn8_ZpmMfXOkyL-NPh-o
- apple-domain-verification=mH1dThioMdCA00zS
- apple-domain-verification=vFrQUbEjSANu-aWyWHt3w6wi5vM_nGZ8dgmJmDV-t4I
- MS=ms23698076
- google-site-verification=vDWiBLNuvS2ST5FJ2JhFGkcSpLWMu6NgVXPqWd0gZX4
- MS=6E3F94DD30BDE353CA2C1FCCCD478B365E2FB1E8
- 7zx20595f1gtb4hwm0jxg2qd3fbfclc3
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