delaware.pro

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
delaware.pro
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-18 15:30:37 UTC ยท โ†บ Refresh

MX Hostnames

  • delaware-pro.mail.protection.outlook.com

MX Priorities

  • delaware-pro.mail.protection.outlook.com: 10

A / AAAA Records

  • 150.171.109.35 (no PTR)

Mail Server IPs

  • 52.101.73.4 โ†ฉ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.39 โ†ฉ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.2 โ†ฉ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.24 โ†ฉ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 โ†ฉ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 โ†ฉ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 โ†ฉ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 โ†ฉ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns.nscluster.eu hostmaster.nscluster.eu 2026033982 7200 3600 1209600 3600
Primary NS (mname)
ns.nscluster.eu
Admin Email (rname)
hostmaster@nscluster.eu
Serial
2026033982
Refresh
7200s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns.nscluster.eu
ns.nscluster.us
ns.nscluster.gr
ns.nscluster.uk
ns.nscluster.ee

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:40.119.144.75 include:_spf.4me.com include:spf.mailjet.com include:_spf-dc12.successfactors.com include:spf.protection.outlook.com include:4094704.spf01.hubspotemail.net include:_spf.relay.mailprotect.be include:aws.de1.spf.staffbase.com include:stspg-customer.com -all
๐Ÿ“Š DNS lookups: 8/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 4 found
selector1._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

15 records
  • b02da129-4e1e-4801-a3b8-672a32876c28
  • _5zyk1a6wxkxi3ob7yiuypdrtowd6u5p
  • mindmanager-verification=92c23d77b6b8e8327128859040f3feddb2fbdc914a09f8d37e222f30b4f1a38c
  • docusign=ca5d0149-b20e-4065-ac90-70a2999f707e
  • atlassian-domain-verification=qGGDhzfg7wMJKrUuureZYYYUhTPRgpaPsKPVpGA6VIjpiFIjepw/9i0VQ/eNzmkl
  • lovable_verification=workspace_mgjb14dz6nk5wbnoy6p
  • docusign=e7fa9660-8eab-4c78-8d4a-69194ae00600
  • spycloud-domain-verification=5dd632ca-a253-4faa-8fdd-29793099e87e
  • MS=ms19068350
  • SPFv=spf1 ip4:40.119.144.75 include:_spf.4me.com include:spf.mailjet.com include:_spf-dc12.successfactors.com include:spf.protection.outlook.com include:4094704.spf01.hubspotemail.net include:_spf.relay.mailprotect.be include:aws.de1.spf.staffbase.com include:stspg-customer.com -all
  • miro-verification=6153b72be021dee2f43644f62bf20af7f2ae1baf
  • status-page-domain-verification=h931typyp899
  • google-site-verification=tfG0r3sLinwwiUQZs6Gs10znvhX72RQ2BHPj7fTI18E
  • airtable-verification=f45daa5fcbcd6a47f5e5b2146f89b9c6
  • anthropic-domain-verification-v7jnc3=i5VHwBcEuwSuTLu7a0HCIZcSO
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 delaware.pro

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

Get 1,000 Free Credits