gbu-service.ch

Valid Email Server
Domain Lookup › gbu-service.ch
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
gbu-service.ch
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-10 16:18:00 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

  • gbu-service.ch.1.0001.arsmtp.com
  • gbu-service.ch.2.0001.arsmtp.com

MX Priorities

  • gbu-service.ch.2.0001.arsmtp.com: 20
  • gbu-service.ch.1.0001.arsmtp.com: 10

A / AAAA Records

  • 104.21.71.14 (no PTR)
  • 172.67.168.252 (no PTR)
  • 2606:4700:3031::ac43:a8fc (no PTR)
  • 2606:4700:3031::6815:470e (no PTR)

Mail Server IPs

  • 5.152.188.52 ↩ server401.appriver.com
  • 5.152.185.140 ↩ server400.appriver.com

SOA Record

Raw SOA kianchau.ns.cloudflare.com dns.cloudflare.com 2412706884 10000 2400 604800 1800
Primary NS (mname)
kianchau.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2412706884
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

sreeni.ns.cloudflare.com
kianchau.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:exghost.com include:appriver.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

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

All TXT Records

2 records
  • SPFv=spf1 include:exghost.com include:appriver.com ~all
  • brevo-code:3f4b1c754a9fdaaff433475cd3b25aa8
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 gbu-service.ch

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

No credit card required
Get 1,000 Free Credits