square1.io

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
square1.io
Yes
โœ“ Yes
Google
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-18 14:56:10 UTC ยท โ†บ Refresh

MX Hostnames

  • aspmx4.googlemail.com
  • aspmx2.googlemail.com
  • alt2.aspmx.l.google.com
  • aspmx3.googlemail.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx5.googlemail.com

MX Priorities

  • alt2.aspmx.l.google.com: 20
  • aspmx2.googlemail.com: 30
  • aspmx3.googlemail.com: 30
  • aspmx4.googlemail.com: 30
  • aspmx5.googlemail.com: 30
  • aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 20

A / AAAA Records

  • 172.67.129.189 (no PTR)
  • 104.21.2.220
  • 2606:4700:3031::ac43:81bd
  • 2606:4700:3030::6815:2dc

Mail Server IPs

  • 172.253.116.27 โ†ฉ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a โ†ฉ dj-in-f26.1e100.net
  • 108.177.123.26 โ†ฉ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 2a00:1450:400b:c02::1b โ†ฉ dj-in-f27.1e100.net
  • 192.178.223.27 โ†ฉ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a โ†ฉ yulhrs-in-f26.1e100.net
  • 173.194.76.26 โ†ฉ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b โ†ฉ ws-in-x1b.1e100.net

SOA Record

Raw SOA donna.ns.cloudflare.com dns.cloudflare.com 2398191066 10000 2400 604800 1800
Primary NS (mname)
donna.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398191066
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

donna.ns.cloudflare.com
jake.ns.cloudflare.com

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:_spf.google.com include:mailgun.org include:stspg-customer.com include:spf.mtasv.net include:spf.mandrillapp.com include:spf.autopilothq.com include:sendgrid.net include:helpscoutemail.com include:servers.mcsv.net ~all
๐Ÿ“Š DNS lookups: 9/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; 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]

DKIM Selectors

โœ“ 2 found
google._domainkey
k1._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

8 records
  • SPFv=spf1 include:_spf.google.com include:mailgun.org include:stspg-customer.com include:spf.mtasv.net include:spf.mandrillapp.com include:spf.autopilothq.com include:sendgrid.net include:helpscoutemail.com include:servers.mcsv.net ~all
  • 1password-site-verification=ISH4M3MXJZC2DMOZ2BSGZA5CLI
  • MS=FCF6AF44BF5F3D3E181A183D5764A655A4BAB147
  • anthropic-domain-verification-dg19tz=UsiqpYTXA3gbksJhJw0NzOLJ1
  • facebook-domain-verification=slrmh6zn5d5qdy2tarbvm5nnc5hy5w
  • google-site-verification=GEmw7XPzcmBy7o_1_nnMwvvM3K6APsCVlBNzq6RbXII
  • google-site-verification=QNFdZc-fF2ufuJmbsSIS09JJmzxJoVJYVqb4j8VAkGw
  • status-page-domain-verification=2yhxzbl4km5v
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