techdefenders.com

Valid Email Server
Domain Lookup › techdefenders.com

Domain Overview

DNS: ✓ just now Checker: ✓ just now
techdefenders.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 10:36:05 UTC · ↺ Refresh

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MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 1

A / AAAA Records

  • 199.60.103.18 (no PTR)
  • 199.60.103.118

Mail Server IPs

  • 172.253.63.26 ↩ bi-in-f26.1e100.net
  • 172.253.63.27 ↩ bi-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 172.253.122.26 ↩ bh-in-f26.1e100.net
  • 172.253.122.27 ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
  • 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net

SOA Record

Raw SOA dns1.registrar-servers.com hostmaster.registrar-servers.com 1780285616 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1780285616
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s

Nameservers (NS)

dns2.registrar-servers.com
dns1.registrar-servers.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:2525617.spf05.hubspotemail.net include:sent-via.netsuite.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

7 records
  • google-site-verification=VHtSPrelpKA_w8YpPEGaxiCni9vFaOjGH83BJH4ua-4
  • google-site-verification=qplfZHUO1vbFFX77W5o7S4KxoI6IVhsw-mc01MgSFlw
  • amazon-business-verification=d6101a6b3613aa6d039b5deb52cf1b00af7fbbebaad5d674e4fd79efb17abb03
  • SPFv=spf1 include:_spf.google.com include:2525617.spf05.hubspotemail.net include:sent-via.netsuite.com ~all
  • MS=ms37614364
  • apple-domain-verification=iJQTBRAjXMuP3ns5
  • mongodb-site-verification=Vg2iN76tzZ7e18lfwp825Ek6a3N16TxX
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