redpiston.com

Valid Email Server
Domain Lookup › redpiston.com

Domain Overview

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

Checked via [email protected] · 2026-03-29 06:51:09 UTC · ↺ Refresh

MX Hostnames

  • redpiston-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 52.206.221.90 ↩ ec2-52-206-221-90.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns-373.awsdns-46.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-373.awsdns-46.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-373.awsdns-46.com
ns-866.awsdns-44.net
ns-1202.awsdns-22.org
ns-1888.awsdns-44.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:emailsrvr.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • google-site-verification=YVZSn2k2u_Y63sqOijXIVRcd_2adlrQVXXCh-bdkc_M
  • om6hr8p25uvrmo7g2a50fgeb08
  • shuauvmm6vkms7lc1i4folv2vf
  • snrf7jsrkv52o3c1dfjepc51hv
  • SPFv=spf1 include:emailsrvr.com include:spf.protection.outlook.com -all
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