Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rconstructioninc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 00:11:42 UTC · ↺ Refresh
MX Hostnames
- rconstructioninc-com.mail.protection.outlook.com
MX Priorities
- rconstructioninc-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.154.229 (no PTR)
- 104.21.13.59 (no PTR)
- 2606:4700:3037::6815:d3b
- 2606:4700:3035::ac43:9ae5
Mail Server IPs
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
javier.ns.cloudflare.com dns.cloudflare.com 2399830487 10000 2400 604800 1800
Primary NS (mname)
javier.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399830487
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
javier.ns.cloudflare.com
monroe.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:192.34.201.250 ip4:108.193.95.249 ip4:40.137.38.125 ip4:69.5.199.186 ip4:209.189.250.22 include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r; pct=0
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 0% of failing messages only
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
3 records- SPFv=spf1 include:spf.protection.outlook.com ip4:192.34.201.250 ip4:108.193.95.249 ip4:40.137.38.125 ip4:69.5.199.186 ip4:209.189.250.22 include:sendgrid.net -all
- bluebeam-verification=ux6vycm65q14svv1ffcj944lny4c6n
- smartsheet-site-validation=vln8_VC7wQ2wSin7TAP_USttih4_ykj-
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