costarmanager.com

Valid Email Server
Domain Lookup › costarmanager.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
costarmanager.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 17:04:03 UTC · ↺ Refresh

MX Hostnames

  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • l2qdg6ikavyizcui7kxcfywjsp66trgxfvdlinaiho3sywvsqmiq.mx-verification.google.com

MX Priorities

  • aspmx.l.google.com: 1
  • alt4.aspmx.l.google.com: 10
  • l2qdg6ikavyizcui7kxcfywjsp66trgxfvdlinaiho3sywvsqmiq.mx-verification.google.com: 15
  • alt3.aspmx.l.google.com: 10
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 199.60.103.21 (no PTR)

Mail Server IPs

  • 172.217.222.27 ↩ qi-in-f27.1e100.net
  • 2607:f8b0:400d:c02::1a ↩ qm-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA dns1.p01.nsone.net hostmaster.nsone.net 1707421856 43200 7200 1209600 3600
Primary NS (mname)
dns1.p01.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1707421856
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

dns3.p09.nsone.net
dns4.p09.nsone.net
ns01.squarespacedns.com
ns02.squarespacedns.com
ns03.squarespacedns.com
ns04.squarespacedns.com
dns1.p09.nsone.net
dns2.p09.nsone.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

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

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

2 records
  • google-site-verification=-Qq-i6bUK34B89BUl6Pn3Gd1di-iIHTeP15LsQFqNu4
  • google-site-verification=_cSDhZvrtvhmcPFGz1Ubi2yaaa__FY2PBgDX3X73O1c
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