ck.com

Valid Email Server
Domain Lookup › ck.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ck.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 18:55:39 UTC · ↺ Refresh

MX Hostnames

  • mxa-00778a01.gslb.pphosted.com
  • mxb-00778a01.gslb.pphosted.com

MX Priorities

  • mxa-00778a01.gslb.pphosted.com: 5
  • mxb-00778a01.gslb.pphosted.com: 5

A / AAAA Records

  • 166.117.39.246 ↩ ae65404dcc38b88c1.awsglobalaccelerator.com
  • 166.117.243.153 ↩ ae65404dcc38b88c1.awsglobalaccelerator.com

Mail Server IPs

  • 205.220.172.26 ↩ mx0b-00778a01.pphosted.com

SOA Record

Raw SOA ha1.markmonitor.zone hostmaster.markmonitor.com 2026022601 86400 3600 2592000 172800
Primary NS (mname)
ha1.markmonitor.zone
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2026022601
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s

Nameservers (NS)

ha2.markmonitor.zone
ha3.markmonitor.zone
ha4.markmonitor.zone
ha1.markmonitor.zone

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

27 records
  • mentimeter-084a341a-8520-487f-9e1e-72fe97202ab6
  • AZXyf+JIRNRUFfjnr4qJ2bLgrN+P34yje6D3JPITDuW396xhpvtuZXllxIVwv9XSWvsYo+Hp70Fk0ozCwRsTEw==
  • apple-domain-verification=VPlT5aPJiwupuWfW
  • V2xbZRo3B2jD32v/tZ8TdLNshIaPigRTV80FVr3OM8qs/v8oGmHFIY/uEJVsGei+i4D4Vkt5scGlzH7Dk4idjw==
  • miro-verification=1c08b55536bc641104c8c3a4a8a6cc53a2750758
  • rhn3rpmvllhjbtvnyzfhy8j3yrhhnjrl
  • work-accounts-domain-verification=07cUbcDgEJ4TP9OkeQl9Dvqywe8rP7
  • MS=ms21421772
  • adobe-idp-site-verification=395e5237f109017b20ee4c430a0fdbdf8dde9f5dfc06c389d107f25a75b5cae0
  • openai-domain-verification=dv-RvZxnOjmYIEhH2OG0W6eS1gq
  • cHZo
  • airtable-verification=7ffb80bb9ee3ca161b1aa8b524276b71
  • cisco-ci-domain-verification=1f4e41865f236a29589bc07d33ddc61850c6c1f278caa870f8c062a8df078e00
  • box-domain-verification=9782629eeffbfd81d3ef038295c0311fc0c10c6bc8b0351c7ee9d8a589d4c7eb
  • tb0ml25fyhm2j8p4710991pm50f8254m
  • _shgf3i10wvt9zljnbh9gfszewxqw1gg
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
  • 4pjbc9w5qbshtx6p3cczjbmrdq1wtpmw
  • _49480dcsyln3c5bvtcrqw1s0dty8tdd
  • apple-domain-verification=MolwqVnjqUoHYtRA
  • Dynatrace-site-verification=5036c5d2-ebc5-4d0c-9686-9423311cd457__3nulpfbu3ut856qu666l8jbjh
  • _5alvv2nr77otab5wxw6z68d5a4faccv
  • atlassian-domain-verification=hiO4/iBEWO5BF/YcTL7nKGURj41vaBGEBIVFejuc/6mJwuTctmp7uKioZzMenacW
  • ab9lh2f4q2205thi26ah8de6mf
  • fastly-domain-delegation-B3u42nM4P2hVdwjUL-458722-2022-01-12
  • 1a4f1se8hucnsl1dqs9d17vq3k
  • wr7sq138kr3fs6s9fwkj8z37b4sx5fnn
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