Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gcc.edu
Yes
✓ Yes
Outlook
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 22:42:30 UTC · ↺ Refresh
MX Hostnames
- gcc-edu.mail.protection.outlook.com
MX Priorities
- gcc-edu.mail.protection.outlook.com: 5
A / AAAA Records
- 72.23.224.74 ↩ static-acs-72-23-224-74.zoominternet.net
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com hostmaster.gcc.edu 2011031309 3600 600 1209600 3600
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
hostmaster@gcc.edu
Serial
2011031309
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2-03.azure-dns.net
ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:gcc.edu._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._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
8 records- adobe-idp-site-verification=1580173a5d6879a7303613e2a6febadf1cbe91ae7c26945e46256acdb00dcf71
- apple-domain-verification=DeugW7wftWfEIUYU
- google-site-verification=kws-CofXz6yShiDu9B4UZ5tP49rMgBubxjI4DNIjONM
- odyssey-bc4983605e27f53e59006d33252c4bac
- 4redr4asnom962eu9btnbpbrek
- meSnfVkXaj4Avy87OwLMgBQUMQlZmOW1jfSE1CQ7d/zQM/0pbhdx7HW9IHqh+FRf7efdPp8+r3G1k91qw2eUvw==
- cisco-ci-domain-verification=204bfd818f89342667d98a31386708a68f2119a3b593a4dfd11bd40dc91aaad3
- SPFv=spf1 include:gcc.edu._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
Full email verification for gcc.edu
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