Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crc.gatech.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 13:15:44 UTC · ↺ Refresh
MX Hostnames
- crc-gatech-edu.mail.protection.outlook.com
MX Priorities
- crc-gatech-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 52.22.200.102 ↩ ec2-52-22-200-102.compute-1.amazonaws.com
- 54.159.50.159 ↩ ec2-54-159-50-159.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.gatech.edu hostmaster.gatech.edu 65 3600 600 1209600 3600
Primary NS (mname)
dns1.gatech.edu
Admin Email (rname)
hostmaster@gatech.edu
Serial
65
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns1.gatech.edu
dns2.gatech.edu
dns3.gatech.edu
SPF Record
✓ Strict (-all)
v=spf1 include:spf.gatech.edu include:_spf.e2ma.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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 include:spf.gatech.edu include:_spf.e2ma.net -all
- google-site-verification=TEMcC4X-nTGCUa_UYYk_aPBVCrYDpDY7iHjLsG6v-Cw
- Cg18IyroM5mY1o9b0VQkXYwHua3oc1yvOjqy6SlrFR0z82YST4uXE7YQlotIU82Lat8oZYOiUH17DWSsRD7pqg==
- e2ma-verification=b77fb
- smartsheet-site-validation=ee0uoguYjIiGzYUsRid8E2CTvLGvCRvE
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