Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rlcomputing.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 19:09:58 UTC · ↺ Refresh
MX Hostnames
- rlcomputing-com.mail.protection.outlook.com
MX Priorities
- rlcomputing-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.47.73 (no PTR)
- 172.67.170.167 (no PTR)
- 2606:4700:3033::6815:2f49
- 2606:4700:3036::ac43:aaa7
Mail Server IPs
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
george.ns.cloudflare.com dns.cloudflare.com 2399691704 10000 2400 604800 1800
Primary NS (mname)
george.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399691704
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
nia.ns.cloudflare.com
george.ns.cloudflare.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; pct=80; sp=none; adkim=r; fo=0; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
⚠ Policy applies to 80% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=ms31704123
- google-site-verification=MXOXY1omQtDNdqGF-k7bKglR6Hk0K85TQiAY6wKjz1I
- jlf4m5a3q68uo6v5aafelv7iml
- SPFv=spf1 include:spf.protection.outlook.com -all
- 163sa7qdq14jd7attpd2f176v4
Full email verification for rlcomputing.com
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