Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rex.app
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 04:07:18 UTC · ↺ Refresh
MX Hostnames
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 172.67.68.44
- 104.26.3.86
- 104.26.2.86
- 2606:4700:20::681a:256
- 2606:4700:20::ac43:442c
- 2606:4700:20::681a:356
Mail Server IPs
- 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
elmo.ns.cloudflare.com dns.cloudflare.com 2398290897 10000 2400 604800 1800
Primary NS (mname)
elmo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398290897
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elmo.ns.cloudflare.com
veda.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._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
8 records- proxy-ssl.webflow.com
- stripe-verification=a899fd4cb2e2d7ce78eef6f5a8b651fee05530ddaa7367edcb243f1e121611b8
- SPFv=spf1 include:_spf.google.com ~all
- brevo-code:8203184a6543a8a751229a605879f762
- facebook-domain-verification=6e51wsn4rm7e9o4k0hb3ydd6f7bmuv
- google-site-verification=B11u1AoS_p8fLwz_dDyXQpefDUF-Rynou0eBY4mjR48
- google-site-verification=Ov9ATEHagV9lQ77TPSaI0XaJw4EEv1SCjr_eq9US_bE
- google-site-verification=pu4QVjqdGtBaSmoyewNQiUZvWwmppzmWt5BXnbiLKOo
Full email verification for rex.app
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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