newharbor.com

Valid Email Server
Domain Lookup › newharbor.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 17:41:17 UTC · ↺ Refresh

MX Hostnames

  • mx01.1and1.com
  • mx00.1and1.com

MX Priorities

  • mx01.1and1.com: 10
  • mx00.1and1.com: 10

A / AAAA Records

  • 74.208.236.89 ↩ 74-208-236-89.elastic-ssl.ui-r.com

Mail Server IPs

  • 74.208.5.21 ↩ mx01.perfora.net
  • 74.208.5.3 ↩ mx00.perfora.net

SOA Record

Raw SOA ns57.1and1.com hostmaster.1and1.com 2017062001 28800 7200 604800 300
Primary NS (mname)
ns57.1and1.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017062001
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns57.1and1.com
ns58.1and1.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

No TXT records found.

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