springisd.org

Valid Email Server

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
springisd.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-19 09:56:14 UTC · ↺ Refresh

MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 10

A / AAAA Records

  • 34.238.178.141 ↩ ec2-34-238-178-141.compute-1.amazonaws.com

Mail Server IPs

  • 142.251.179.26 ↩ pd-in-f26.1e100.net
  • 64.233.180.27 ↩ pe-in-f27.1e100.net
  • 64.233.180.26 ↩ on-in-f26.1e100.net
  • 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
  • 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
  • 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
  • 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
  • 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net
  • 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net

SOA Record

Raw SOA ns-1297.awsdns-34.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1297.awsdns-34.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1297.awsdns-34.org
ns-153.awsdns-19.com
ns-2013.awsdns-59.co.uk
ns-608.awsdns-12.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:sendgrid.net ip4:65.110.166.160/27 ip4:74.125.148.0/22 ip4:207.207.50.0/28 ip4:207.207.50.192/27 ip4:204.13.103.94 ip4:149.72.231.47 ip4:149.72.196.66 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
  • SPFv=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:sendgrid.net ip4:65.110.166.160/27 ip4:74.125.148.0/22 ip4:207.207.50.0/28 ip4:207.207.50.192/27 ip4:204.13.103.94 ip4:149.72.231.47 ip4:149.72.196.66 ~all
  • v=3507ad7b-663c-4d99-8e52-c6575cd25397
Full email verification for springisd.org

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits