Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
press.princeton.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 18:03:10 UTC · ↺ Refresh
MX Hostnames
- mxb-009e4801.gslb.pphosted.com
- mxa-009e4801.gslb.pphosted.com
MX Priorities
- mxa-009e4801.gslb.pphosted.com: 10
- mxb-009e4801.gslb.pphosted.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4 (no PTR)
Mail Server IPs
- 66.159.248.15 ↩ mx0a-009e4801.pphosted.com
SOA Record
Raw SOA
ns-920.awsdns-51.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-920.awsdns-51.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-80.awsdns-10.com
ns-920.awsdns-51.net
ns-1029.awsdns-00.org
ns-1952.awsdns-52.co.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.159.248.15 ip4:66.159.239.240 include:spf.protection.outlook.com include:m.msgbman.com include:messagereach.com include:spf.responsegenius.com include:mail.client.spf.tagonline.com include:7931782.spf01.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
13 records- ZOOM_verify_9AP8MplCSKiBucZB82OmHg
- _globalsign-domain-verification=KUfMx4p5Dhz8K1I0cgV7bsv8fSWj56_3x3-o-lS5an
- _globalsign-domain-verification=gdFX4amdGXtGQ3kxS9-JUmnkNyxPJKMQfsffLxaUz-
- adobe-idp-site-verification=3d8f0f59d72d522722a775e79d1d48e14c1b41cf9ee0996a94dd71fa22e9d111
- apple-domain-verification=M8IvnhZQtbWVmSht
- docusign=a4b0d0e0-8097-4fda-b680-dd52088f9afc
- extensis-domain-verification=4b7b8829-1e5d-43e6-8beb-b55e4781a555
- facebook-domain-verification=sc6xj7gt4fsxvbsxovgmompse4p18s
- google-site-verification=TuZDvssC_nfFarCQZlzAbMw1iNnXZYD--gb7ROWgyf4
- google-site-verification=alMF5SK-os7rooOu4d-LDXQqD_6s2RH9g3icFz4Rmtg
- jamf-site-verification=IrKuynxT-TnlmqUaELxrCA
- SPFv=spf1 ip4:66.159.248.15 ip4:66.159.239.240 include:spf.protection.outlook.com include:m.msgbman.com include:messagereach.com include:spf.responsegenius.com include:mail.client.spf.tagonline.com include:7931782.spf01.hubspotemail.net -all
- zmtvdhsck7th5zjrwvx2mk5kpbqcm6gy
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for press.princeton.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits