postlets.com

Valid Email Server
Domain Lookup › postlets.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
postlets.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 08:22:54 UTC · ↺ Refresh

MX Hostnames

  • postlets-com.mail.protection.outlook.com

MX Priorities

  • postlets-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 99.84.234.37 ↩ server-99-84-234-37.jfk50.r.cloudfront.net
  • 99.84.234.53 ↩ server-99-84-234-53.jfk50.r.cloudfront.net
  • 99.84.234.5
  • 99.84.234.96

Mail Server IPs

  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com

SOA Record

Raw SOA ns-252.awsdns-31.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-252.awsdns-31.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-252.awsdns-31.com
ns-723.awsdns-26.net
ns-1527.awsdns-62.org
ns-1917.awsdns-47.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:sendgrid.net include:spf.protection.outlook.com include:mail.zendesk.com a:zillowmail.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._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

5 records
  • r55qgwj9txgwsrl729x2d73fqjtrdjg0
  • SPFv=spf1 include:_spf.google.com include:sendgrid.net include:spf.protection.outlook.com include:mail.zendesk.com a:zillowmail.com ~all
  • 6hhpw3df12yj4rvsgxhbpy5ww7s7wrcj
  • google-site-verification=KiMvduvHYb9Pa4c4RD_sRO2zzyoxas3kXW08Z6LE9G8
  • google-site-verification=usFzImwbCPZ5_zJC_uNq9c1XdyxvtLlMlEV3VHrh44U
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