buk.co

Valid Email Server
Domain Lookup › buk.co

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
buk.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 06:15:40 UTC · ↺ Refresh

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MX Hostnames

  • aspmx.l.google.com
  • aspmx3.googlemail.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com

MX Priorities

  • aspmx2.googlemail.com: 10
  • aspmx3.googlemail.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1

A / AAAA Records

  • 3.168.122.100
  • 3.168.122.107
  • 3.168.122.43
  • 3.168.122.11

Mail Server IPs

  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net

SOA Record

Raw SOA ns-77.awsdns-09.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-77.awsdns-09.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-836.awsdns-40.net
ns-1507.awsdns-60.org
ns-1867.awsdns-41.co.uk
ns-77.awsdns-09.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:sendgrid.net include:3790458.spf07.hubspotemail.net include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com include:mail.zendesk.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=75; rua=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
⚠ Policy applies to 75% of failing messages only

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

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

All TXT Records

7 records
  • MS=ms77397947
  • anthropic-domain-verification-7xer4w=C9YoJyYTvsitjWBYgSQP8rUFJ
  • google-site-verification=9eKrrm7RwyxjRNOmOE5iIsH_8USfY3lcR8LeE9WXyi8
  • google-site-verification=Y_i8eVYWInY9P0T9hzFiIaSArnt6MyIppX-LdvbZCnk
  • google-site-verification=lP4xWUQmSxKnCww7FNZ1xohTJVMneYNkzOtY5dl5BDI
  • mandrill_verify.oh6rXIbo5OCq0vm1K8lXwQ
  • SPFv=spf1 include:sendgrid.net include:3790458.spf07.hubspotemail.net include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com include:mail.zendesk.com ~all
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