buildbiz.com

Valid Email Server
Domain Lookup › buildbiz.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
buildbiz.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 06:11:30 UTC · ↺ Refresh

MX Hostnames

  • mail.buildbiz.com

MX Priorities

  • mail.buildbiz.com: 10

A / AAAA Records

  • 108.139.29.113 ↩ server-108-139-29-113.jfk50.r.cloudfront.net
  • 108.139.29.120 ↩ server-108-139-29-120.jfk50.r.cloudfront.net
  • 108.139.29.45 ↩ server-108-139-29-45.jfk50.r.cloudfront.net
  • 108.139.29.39 ↩ server-108-139-29-39.jfk50.r.cloudfront.net

Mail Server IPs

  • 52.60.67.23 ↩ mail.buildbiz.com

SOA Record

Raw SOA ns-43.awsdns-05.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-43.awsdns-05.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1047.awsdns-02.org
ns-2000.awsdns-58.co.uk
ns-43.awsdns-05.com
ns-955.awsdns-55.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:52.60.67.23 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

4 records
  • DKIMv=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCYlCwtTfbAwIdRa9b3B/OR7v6pkjCdLH9weTYizlMfcmmnzRshlF8cOJufDmDsuoiu2K1Uw1p7VoykIEZHZjTMHnTWk9d38LKtrgTykmK8WnP16Nh1BTt3Dvs30KtGZZDB1/qMmMfkuTvK7Pa4GHNBHi4Q4rnIp/OsGVFQ/45fQIDAQAB;
  • SPFv=spf1 ip4:52.60.67.23 -all
  • z4zmghmf3l1tf0kcmq9vb9q53s184y6d
  • google-site-verification=E3mSFZZnBlIFVoP3S4b584iJuHSKliQVZFSnS4IUj40
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