Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esu4.net
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:28:23 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 5
- alt4.aspmx.l.google.com: 10
- alt3.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 20.84.236.215
Mail Server IPs
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
ns01.esu4.org postmaster.esu4.org 2018080286 43200 3600 1209600 180
Primary NS (mname)
ns01.esu4.org
Admin Email (rname)
postmaster@esu4.org
Serial
2018080286
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns03.esu4.org
ns04.esu4.org
ns05.esu4.org
ns06.esu4.org
ns01.esu4.org
ns02.esu4.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:162.127.6.0/24 ip4:204.234.245.0/24 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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
9 records- ZOOM_verify_spyhIC4YjS9CSDcVVD66U9
- google-site-verification=Yk4u-Psoni3aW25BHjC5XHphguOPwGQxBhs59aBgKsU
- adobe-idp-site-verification=32335d45252f724593faf23e28c480f87c8d6468aa554c0e919428a203b7d01f
- apple-domain-verification=xFg9IJk9ZC3latCI
- sophos-domain-verification=3d1da25ad586a6350796d0baf6c69fcae56ec603ad1ad6c2a7e06ba6498eda04
- wombat-verification=3KwxVCQV1HEp-aRXRTKKaZ5G0frhk
- MS=ms677672271
- SPFv=spf1 ip4:162.127.6.0/24 ip4:204.234.245.0/24 include:_spf.google.com -all
- ZOOM_verify_lNJBdAYPRTiasKPDLNbK0Q
Full email verification for esu4.net
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits