1zu1.ag

Valid Email Server
Domain Lookup › 1zu1.ag

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
1zu1.ag
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 13:59:11 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

  • 1zu1-ag.mail.cloud.nospamproxy.com

MX Priorities

  • 1zu1-ag.mail.cloud.nospamproxy.com: 10

A / AAAA Records

  • 35.158.169.233 ↩ bielefeld.jweiland.cloud
  • 2a05:d014:14f:aa0e:5f96:8d7f:7553:4eda ↩ bielefeld.jweiland.cloud

Mail Server IPs

  • 178.212.92.11 ↩ de-s03-gw2.mail.cloud.nospamproxy.com
  • 193.37.132.5 ↩ de-s03-gw1.mail.cloud.nospamproxy.com

SOA Record

Raw SOA ns-801.awsdns-36.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-801.awsdns-36.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-171.awsdns-21.com
ns-801.awsdns-36.net
ns-1274.awsdns-31.org
ns-1691.awsdns-19.co.uk

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:83.236.199.114 ip4:83.236.199.115 include:spf.crsend.com include:spf.protection.outlook.com include:spf.1zu1-ag.cloud.nospamproxy.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
dkim._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

5 records
  • MS=ms32186030
  • bV06ggmFQhdU1Rbu7NhVkmJ+srs0wb7cOMA7yPqR31NqAPKO/4knGbV0xaBsODdPznDuA1bR5C43driLTDB+Mw==
  • globalsign-domain-verification=F8633603218FACA7D98CC1C719808E60
  • t3iqD2gC4iP36Qy6T8xQiJ8a8Oaj9Jpjfoi4n2CMc3k=
  • SPFv=spf1 a mx ip4:83.236.199.114 ip4:83.236.199.115 include:spf.crsend.com include:spf.protection.outlook.com include:spf.1zu1-ag.cloud.nospamproxy.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 1zu1.ag

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

No credit card required
Get 1,000 Free Credits