Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
yu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 02:37:49 UTC · ↺ Refresh
MX Hostnames
- yu-edu.mail.protection.outlook.com
MX Priorities
- yu-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8000::2 (no PTR)
- 2620:12a:8001::2
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.yu.edu dnstech.yu.edu 2025105252 10800 1080 2592000 900
Primary NS (mname)
ns1.yu.edu
Admin Email (rname)
dnstech@yu.edu
Serial
2025105252
Refresh
10800s
Retry
1080s
Expire
2592000s
Minimum TTL
900s
Nameservers (NS)
ns1.yu.edu
ns2.yu.edu
dns2.nysernet.org
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:129.98.40.61 ip4:129.98.232.61 ip4:52.45.50.190 ip4:54.146.129.215 include:spf.protection.outlook.com ip4:74.122.104.0/22 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 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
8 records- dropbox-domain-verification=hbz2ob88sgc9
- apple-domain-verification=yx2UcJeTQNj9cMLq
- openai-domain-verification=dv-kET7Mq0rtxt3QSqkVDVfeaA4
- v=msv1t=072D7406-079F-4435-8852-260CCE7E81E7
- google-site-verification=xwtuuk7vlzEN5E1ovs1-ZK30sN8Sg9AsIvtTMsIttKk
- SPve7sXfCp5hQLYsXR6wrX2zu2U7fE4DzDjOVIWLel6JY2zRRJ5xananrfDREkpyvaH1rpn0zX4GYmBPXZMFHw==
- SPFv=spf1 mx ip4:129.98.40.61 ip4:129.98.232.61 ip4:52.45.50.190 ip4:54.146.129.215 include:spf.protection.outlook.com ip4:74.122.104.0/22 -all
- adobe-idp-site-verification=2b15c396ed7a98397d7bf5b97544f289c67e0805bf82234158142f630eedc48d
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