plumbo.com

Valid Email Server
Domain Lookup › plumbo.com

Domain Overview

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

Checked via [email protected] · 2026-03-21 13:02:58 UTC · ↺ Refresh

MX Hostnames

  • plumbo.com

MX Priorities

  • plumbo.com: 0

A / AAAA Records

  • 104.18.22.20 (no PTR)
  • 104.18.23.20 (no PTR)

Mail Server IPs

  • 104.18.22.20 (no PTR)
  • 104.18.23.20 (no PTR)

SOA Record

Raw SOA ns01.proisp.no hostmaster.proisp.no 2026032101 14400 3600 1209600 600
Primary NS (mname)
ns01.proisp.no
Admin Email (rname)
hostmaster@proisp.no
Serial
2026032101
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns02.proisp.no
ns01.proisp.no

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.proisp.no +a +mx ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • SPFv=spf1 include:_spf.proisp.no +a +mx ~all
  • ca3-470eb7c80c9b46e5a9bbe0326f454602
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