concept.de

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-24 22:45:10 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 169.45.90.4
  • 2607:f0d0:2601:e5::2

Mail Server IPs

  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 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::1b ↩ yulhrs-in-f27.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net

SOA Record

Raw SOA ns1.softlayer.com support.softlayer.com 2026021803 7200 600 1728000 3600
Primary NS (mname)
ns1.softlayer.com
Admin Email (rname)
support@softlayer.com
Serial
2026021803
Refresh
7200s
Retry
600s
Expire
1728000s
Minimum TTL
3600s

Nameservers (NS)

ns2.softlayer.com
ns1.softlayer.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:213.164.80.232 ip4:130.61.24.204 ip4:169.45.90.4 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
google._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

2 records
  • google-site-verification=QeFivdEjaF5rFoRhEm4DsqUZi6EF0a0zD22n17iWALY
  • SPFv=spf1 ip4:213.164.80.232 ip4:130.61.24.204 ip4:169.45.90.4 include:_spf.google.com ~all
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