Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
b2bmg.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 02:56:37 UTC · ↺ Refresh
MX Hostnames
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- alt3.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt4.aspmx.l.google.com: 20
A / AAAA Records
- 199.60.103.158
- 199.60.103.58
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
SOA Record
Raw SOA
ns.udag.de hostmaster.united-domains.de 2024052913 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024052913
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.udag.de
ns.udag.net
ns.udag.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:u1787641.wl142.sendgrid.net include:_spf.google.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=5; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
DKIM Selectors
✓ 4 found
google._domainkey
mail._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
7 records- openai-domain-verification=dv-aFZOO0Jy6EaLMFXRGO7R7Bfd
- apple-domain-verification=PDufSAFjwDXBQKJZ
- 42A2CFF78D
- SPFv=spf1 include:u1787641.wl142.sendgrid.net include:_spf.google.com ~all
- jamf-site-verification=tnmY44XJ8KHkyJhpZgkfGw
- google-site-verification=0XuzygUyBBA5d5cvSF-BEgL0q7vwKClUteFfsGb5uJE
- google-site-verification=_Gvezb9F1RrJ4O0FKN7ptuS_TmRxLY_drB_6hSndEts
Full email verification for b2bmg.com
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