trebu.io

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
trebu.io
Yes
โœ“ Yes
Google
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-28 10:14:29 UTC ยท โ†บ Refresh

MX Hostnames

  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx3.googlemail.com
  • alt1.aspmx.l.google.com
  • aspmx2.googlemail.com

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • aspmx3.googlemail.com: 10
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 104.26.6.16 (no PTR)
  • 104.26.7.16 (no PTR)
  • 172.67.70.60
  • 2606:4700:20::ac43:463c
  • 2606:4700:20::681a:610
  • 2606:4700:20::681a:710

Mail Server IPs

  • 172.253.116.26 โ†ฉ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a โ†ฉ dj-in-f26.1e100.net
  • 142.251.179.27 โ†ฉ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c08::1a โ†ฉ bi-in-f26.1e100.net
  • 108.177.123.26 โ†ฉ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 108.177.123.27 โ†ฉ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA demi.ns.cloudflare.com dns.cloudflare.com 2399275879 10000 2400 604800 1800
Primary NS (mname)
demi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399275879
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nero.ns.cloudflare.com
demi.ns.cloudflare.com

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
๐Ÿ“Š DNS lookups: 1/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=12; rua=mailto:[email protected]
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]
โš  Policy applies to 12% of failing messages only

DKIM Selectors

โœ“ 1 found
google._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: google

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

All TXT Records

4 records
  • SPFv=spf1 include:_spf.google.com ~all
  • google-site-verification=XhiLC5vabhTlMleqq5zWWDq5T--kHXyVooX4DYY0-ak
  • postman-domain-verification=42ea7f30112d271d1a0f1a5131cabfca82d2900f03158c02f0d46dc42492ea65f5cb454a0921eb97222c581561f35bbf6385dd9f98d0a4c76593bd0ad92d34b3
  • proxy-ssl.webflow.com
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