umbrella-host.com

Valid Email Server
Domain Lookup › umbrella-host.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
umbrella-host.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 11:46:34 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mx.stackmail.com

MX Priorities

  • mx.stackmail.com: 10

A / AAAA Records

  • 185.151.30.159 ↩ 185-151-30-159.ptr4.stackcp.net
  • 2a07:7800::159 (no PTR)

Mail Server IPs

  • 185.151.28.67 ↩ mx.stackmail.com

SOA Record

Raw SOA ns1.umbrella-host.co.uk hostmaster.stackdns.com 1728908157 1800 900 1209600 300
Primary NS (mname)
ns1.umbrella-host.co.uk
Admin Email (rname)
hostmaster@stackdns.com
Serial
1728908157
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns3.umbrella-host.co.uk
ns1.umbrella-host.co.uk
ns2.umbrella-host.co.uk
ns4.umbrella-host.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 +mx +a +ip4:185.151.29.145 +include:stackmail.com +include:spf.hostns.io +include:umbrella-host.co.uk +include:umbrella-hosts.co.uk ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;rf=afrf;ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

1 record
  • SPFv=spf1 +mx +a +ip4:185.151.29.145 +include:stackmail.com +include:spf.hostns.io +include:umbrella-host.co.uk +include:umbrella-hosts.co.uk ~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 umbrella-host.com

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

No credit card required
Get 1,000 Free Credits