Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gwu-hospital.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 14:50:19 UTC · ↺ Refresh
MX Hostnames
- mxb-00117601.gslb.pphosted.com
- mxa-00117601.gslb.pphosted.com
MX Priorities
- mxa-00117601.gslb.pphosted.com: 10
- mxb-00117601.gslb.pphosted.com: 10
A / AAAA Records
- 52.45.224.208 ↩ ec2-52-45-224-208.compute-1.amazonaws.com
Mail Server IPs
- 205.220.177.151 ↩ mx0b-00117601.pphosted.com
- 205.220.165.151 ↩ mx0a-00117601.pphosted.com
SOA Record
Raw SOA
ns-1276.awsdns-31.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1276.awsdns-31.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-828.awsdns-39.net
ns-1276.awsdns-31.org
ns-2016.awsdns-60.co.uk
ns-465.awsdns-58.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
11 records- webexdomainverification.4C675B8AC3ACB136E053AB06FC0A3F65=d4b19e65-2420-4c2e-9b40-1411b34af265
- MS=8A04DC0E4F0EEE9F276261BD867021F5C646BFB6
- MS=ms16549121
- Sd2buKGRNOCWy8WfcEsJtYaKvNMcHzrM5B5OS6DsA/u2cHvBm1FR0meEbEb0svQhx0l1r87vNHPopcmISnx4uA==
- W2XqhYjSq2iAg3i6W8S4CNGBdqO0GiCLrBlDH5FzImY1Nmp35UCIE7nunoW+gugoqEMOI7zIFcDC4HmuFnv36Q==
- cisco-ci-domain-verification=79ac31bed1aa810827f772763a06e1220357f7d71009ddc39c6fcecd19b202f0
- docusign=8aebbd8d-e7ee-4516-bd5f-01ef5ad3bb6b
- google-site-verification=bxELCRSB3GdKfRHVrW-xBFE9AV7cJHrDNxPv7gPmlrg
- onetrust-domain-verification=d362c388b6774dff89b26e73097a30c5
- smartsheet-site-validation=S1trxKtNbyZwQmqCjBffozL0IwF8QFWA
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
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 · Customize →
See demo & docs
Deep verification
Full email verification for gwu-hospital.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits