sbs.org

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sbs.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 00:26:07 UTC · ↺ Refresh

MX Hostnames

  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM
  • ALT3.ASPMX.L.GOOGLE.COM
  • ALT4.ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 109.224.228.19

Mail Server IPs

  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)

SOA Record

Raw SOA ns1.staffordnet.com hostmaster.smtp.staffordnet.com 2026021702 3600 900 1209600 43200
Primary NS (mname)
ns1.staffordnet.com
Admin Email (rname)
hostmaster@smtp.staffordnet.com
Serial
2026021702
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
43200s

Nameservers (NS)

ns1.staffordnet.com
ns3.staffordnet.com
ns2.staffordnet.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:outboundmail.blackbaud.net include:servers.mcsv.net include:sbs-org.spf.smtp25.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; adkim=s; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none

DKIM Selectors

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

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

All TXT Records

13 records
  • openai-domain-verification=dv-zZbv3I4zfm3Bclp5tx1eYShg
  • adobe-idp-site-verification=a6d64bb70b84b7699d2e9a11bb8a4fc83b3f4a4551f9c6db5633eac5397c3026
  • knowbe4-site-verification=cc5a71eada0e2841fefc0c7aa37fedbe
  • ZOOM_verify_Vu46JPnicRpJhjsJ6jWpEU
  • zn4LSwwEGju4bhmZuYAp/g==
  • apple-domain-verification=AhXfsqfPZb53wCPT
  • 3LJO7A60MLDUXLCEMVGWR27B1RT0UDIJAZ5U9WWBA
  • cisco-ci-domain-verification=545a8c92e53058dd2419efe9c91749095f00e8df1c9bfbd1d63fb11b80b17ba
  • facebook-domain-verification=3zqvz4icp5zlmhn7zi0smqew1my8fm
  • openai-domain-verification=dv-GGGi5xyWWOZyFKKlCAPC1xiY
  • SPFv=spf1 include:_spf.google.com include:outboundmail.blackbaud.net include:servers.mcsv.net include:sbs-org.spf.smtp25.com ~all
  • google-site-verification=fxgx6fJRdF85_IZrBHliHfly7sQ8GH3hQzXpx7c778U
  • MS=ms89484784
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