Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
unitedcenter.com
Yes
โ Yes
Proofpoint
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-03-20 14:00:56 UTC ยท โบ Refresh
MX Hostnames
- mxb-009b0b01.gslb.pphosted.com
- mxa-009b0b01.gslb.pphosted.com
MX Priorities
- mxb-009b0b01.gslb.pphosted.com: 10
- mxa-009b0b01.gslb.pphosted.com: 10
A / AAAA Records
- 12.53.28.214 (no PTR)
Mail Server IPs
- 66.159.239.20 โฉ mx0b-009b0b01.pphosted.com
- 66.159.241.47 โฉ mx0a-009b0b01.pphosted.com
SOA Record
Raw SOA
aragorn.ns.cloudflare.com dns.cloudflare.com 2399349393 10000 2400 604800 1800
Primary NS (mname)
aragorn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399349393
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dahlia.ns.cloudflare.com
aragorn.ns.cloudflare.com
SPF Record
โ Strict (-all)
v=spf1 ip4:12.236.2.151 ip4:4.30.162.0/24 ip4:207.20.38.8 include:spf.protection.outlook.com include:spf-tm.unitedcenter.com include:mail.zendesk.com include:spf.hosting.americaneagle.com include:emsd1.com include:spf-009b0b01.pphosted.com -all
๐ DNS lookups: 6/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=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 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
โ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- apple-domain-verification=2SjfE8sapGUZLDZL
- google-site-verification=mATarQEtS6YVCq4baRYZPBO-uPPQdexUtUlBQSAD83U
- openai-domain-verification=dv-k6jvP1ARnSOU3K5nkbSnZEeM
- smartsheet-site-validation=-VI2utLUO7gnQ3lDIl8lkD_VNUi2EVJA
- SPFv=spf1 ip4:12.236.2.151 ip4:4.30.162.0/24 ip4:207.20.38.8 include:spf.protection.outlook.com include:spf-tm.unitedcenter.com include:mail.zendesk.com include:spf.hosting.americaneagle.com include:emsd1.com include:spf-009b0b01.pphosted.com -all
- 13g7pLMTpf709frACYCJl/DZpcnbnupm4vqBkN6Hd7MA7hgydOho2+72md4BV74dPS1+w+O+mbh/uku6gGFY5A==
- 7htisE9iLN2asbtDJHeJEcAxSvsSo/K0X646KYg6To1beR9arOLlj0ruw752Ar6dujRM8MCfR9oW3CQmkaF4rg==
- _5i3quq95r6ftxjykexsznznofurb6n3
- _75lol7h2i52hhv7bz1jbqxhelaeyw1x
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 unitedcenter.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits