Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
issbc.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 13:45:29 UTC · ↺ Refresh
MX Hostnames
- issbc-org.mail.protection.outlook.com
MX Priorities
- issbc-org.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8001::4 (no PTR)
- 2620:12a:8000::4
Mail Server IPs
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.worldnic.com namehost.worldnic.com 125120912 10800 3600 604800 3600
Primary NS (mname)
ns3.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125120912
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns4.worldnic.com
ns3.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:69.90.103.176/29 include:lambdasolutions.net include:sendgrid.net include:spf-ca.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
9 records- msfpkey=3ccsjgeyma0tt4wxhyrcvkns5
- e2ma-verification=bibgb
- google-site-verification=b8s2FrVErzDsOe7W5sPgvxl_bcuQ7yzprbVvF6FqP2w
- e2ma-verification=vdagb
- SPFv=spf1 include:spf.protection.outlook.com ip4:69.90.103.176/29 include:lambdasolutions.net include:sendgrid.net include:spf-ca.emailsignatures365.com -all
- apple-domain-verification=TKcVxO8ErOFC1731
- e2ma-verification=6pagb
- knowbe4-site-verification=ae042d5b3f90754f67a22a9eaed297f7
- _globalsign-domain-verification=a665-NtWgck0wYPdQJSY8FAECvR4nkRkSBKH6eSywW
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