Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tcl.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 20:45:59 UTC · ↺ Refresh
MX Hostnames
- tcl-edu.mail.protection.outlook.com
MX Priorities
- tcl-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 99.83.132.153 ↩ ace809251fa26419f.awsglobalaccelerator.com
- 13.248.251.6 ↩ ace809251fa26419f.awsglobalaccelerator.com
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009011488 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009011488
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns14.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns11.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 include:UniversalSPF.org -include:x.UniversalSPF.org include:spf.protection.outlook.com include:ngwebsolutions.net include:esponse.collegenet.com include:in.constantcontact.com include:bmesend.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];ri=3600;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- ZOOM_verify_HJxTmxtxRueTf9fXqYd6Ug
- ReleaseWLIDNamespace=true
- SPFv=spf1 include:UniversalSPF.org -include:x.UniversalSPF.org include:spf.protection.outlook.com include:ngwebsolutions.net include:esponse.collegenet.com include:in.constantcontact.com include:bmesend.com -all
- bw=gjC8Xp+QboedRdfelnxQ03xCFaKb//lrryCNSbuchh7n
- MS=ms35174956
Full email verification for tcl.edu
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