czarnikow.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
czarnikow.com
Yes
โœ“ Yes
Mimecast
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-04-01 02:56:30 UTC ยท โ†บ Refresh

MX Hostnames

  • eu-smtp-inbound-1.mimecast.com
  • eu-smtp-inbound-2.mimecast.com

MX Priorities

  • eu-smtp-inbound-2.mimecast.com: 10
  • eu-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 151.101.2.159 (no PTR)

Mail Server IPs

  • 91.220.42.201 โ†ฉ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.201 โ†ฉ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.241 โ†ฉ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.241 โ†ฉ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.211 โ†ฉ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.211 โ†ฉ eu-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA ns13.worldnic.com namehost.worldnic.com 125112006 10800 3600 604800 3600
Primary NS (mname)
ns13.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125112006
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns14.worldnic.com
ns13.worldnic.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:servers.mcsv.net include:_netblocks.mimecast.com include:sparkpostmail.com include:sendgrid.net -all
๐Ÿ“Š DNS lookups: 4/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
โš  Public key (p=) missing in DKIM record for selector google.

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

All TXT Records

12 records
  • hibp-verify=dweb_93s4psl77wd9m06ion3mfso5
  • czarnikowcorpwp.azurewebsites.net
  • google-site-verification=APi2T_u6BUNFOQwb2MmvfhoirEISgJIW0OeiVj_2nF8
  • 9v8mns5dk76al4urap9o7j59oh
  • 1vo50gudschqlgqdq01ms8jlat
  • fsdqbcnldq3uvu67pj207d0qs1
  • apple-domain-verification=yWwmNnpwo0MMABVi
  • a5c1378feef6c8c7fe687da57f7f9478c287fc6e45230bb0bd
  • SPFv=spf1 include:servers.mcsv.net include:_netblocks.mimecast.com include:sparkpostmail.com include:sendgrid.net -all
  • ux+yOMIopQJbDltieluTLaORAHGz4eIKZlDvJGO+XmHrfeLZDQOL+Ca1Rfbdhptc8rb6RcE5Bk1ntaJzmHc/5Q==
  • MS=ms79097933
  • cusf0j0dro7eebbgoi0kaft7j2
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 czarnikow.com

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

No credit card required
Get 1,000 Free Credits