Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
develctrs.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 13:59:50 UTC · ↺ Refresh
MX Hostnames
- develctrs-org.mail.protection.outlook.com
MX Priorities
- develctrs-org.mail.protection.outlook.com: 1
A / AAAA Records
- 173.219.72.201 (no PTR)
Mail Server IPs
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns43.worldnic.com namehost.worldnic.com 124061715 10800 3600 604800 3600
Primary NS (mname)
ns43.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
124061715
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns43.worldnic.com
ns44.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:12.106.126.250/32 ip4:50.192.98.97/32 ip4:50.77.197.41/32 ip4:198.109.0.21/32 ip4:198.109.0.20/32 ip4:206.57.249.112/32 ip4:162.230.183.105/32 ip4:149.72.246.189/32 ip4:168.245.97.145/32 ip4:168.245.10.15/32 ip4:168.245.115.59/32 ip4:168.245.68.152/32 ip4:192.21.0.108/32 ip4:167.89.13.177/32 ip4:167.89.43.9 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:mail.develctrs.org -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
5 records- SPFv=spf1 mx a ip4:12.106.126.250/32 ip4:50.192.98.97/32 ip4:50.77.197.41/32 ip4:198.109.0.21/32 ip4:198.109.0.20/32 ip4:206.57.249.112/32 ip4:162.230.183.105/32 ip4:149.72.246.189/32 ip4:168.245.97.145/32 ip4:168.245.10.15/32 ip4:168.245.115.59/32 ip4:168.245.68.152/32 ip4:192.21.0.108/32 ip4:167.89.13.177/32 ip4:167.89.43.9 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:mail.develctrs.org -all
- apple-domain-verification=VnueVxGzcHFKhHJ5
- ZOOM_verify_l9dn9zr36GzHAINxYhpNfb
- 5eDa/RbtPtbktPa/QNVqQhYFwYOY/5MJivNdvcltdX9cIItbh7qGuVMGMMWCQ/+GrmOWFFPd/9mtIYLYXgxGVw==
- MS=ms24927681
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