Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
princetonhcs.org
Yes
โ Yes
Outlook
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-03-18 04:55:05 UTC ยท โบ Refresh
MX Hostnames
- princetonhcs-org.mail.protection.outlook.com
MX Priorities
- princetonhcs-org.mail.protection.outlook.com: 10
A / AAAA Records
- 45.60.135.182 (no PTR)
- 45.60.75.182 (no PTR)
Mail Server IPs
- 52.101.11.17 โฉ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.40.6 โฉ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.11.19 โฉ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.41.183 โฉ mail-byapr04cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
infoblox-master.uphs.upenn.edu please_set_email.absolutely.nowhere 22 10800 3600 2419200 900
Primary NS (mname)
infoblox-master.uphs.upenn.edu
Admin Email (rname)
please_set_email@absolutely.nowhere
Serial
22
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
uphs1.uphs.upenn.edu
uphs2.uphs.upenn.edu
uphs3.uphs.upenn.edu
SPF Record
โ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all
๐ DNS lookups: 2/10
~ Soft fail (~all) โ moderate enforcement
DMARC Record
โ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
โ Reject โ strongest protection
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected]
DKIM Selectors
โ 2 found
selector1._domainkey
selector2._domainkey
โ Public key: 392 chars (valid)
โ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
14 records- globalsign-domain-verification=E9FDBA69C852B47123BC54521CB31D33
- have-i-been-pwned-verification=0b48bb720d7c1378940e938663e67a7a
- _globalsign-domain-verification=FxPxy8Pvh1H1i1s0kOLLoUCaSmygxPd9MoL2QNbUgz
- m+h+L5KHFhkTDXOoeSx1kW7+pjnCfrb30UGu5WDEqPKZwmz8rf5LqjiLg/6e2+coKYli7wMO+Ew0EumvE8kvVg==
- logmein-verification-code=a74319c0-8c90-4d7b-833b-ea60605bbc83
- MS=AAA81CDDDB0AE55F83F8E97CD2F4758C09F23C74
- google-site-verification=XDTmRmWGm1EKxPn8aT27FrliKUayoUfAA9OKPxmaT9Q
- MS=ms35951636
- globalsign-domain-verification=f787d17bd552280db73254c13c2acb78
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all
- globalsign-domain-verification=3de2eb2a209a3aeb36a61d03ed06e4f2
- globalsign-domain-verification=DA1579CE5E0D2754265215289BF40A85
- spycloud-domain-verification=57b381ff-1f30-42f6-8a05-4eaa125f0d71
- globalsign-domain-verification=6083EE642E5581CB0C77B18D921AC3CD
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for princetonhcs.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits