sintesys.us

Valid Email Server
Domain Lookup › sintesys.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sintesys.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-04 17:01:44 UTC · ↺ Refresh

MX Hostnames

  • sintesys-us.mail.protection.outlook.com

MX Priorities

  • sintesys-us.mail.protection.outlook.com: 0

A / AAAA Records

  • 74.208.236.147 ↩ 74-208-236-147.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::200 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1101.ui-dns.org hostmaster.1and1.com 2018071277 28800 7200 604800 300
Primary NS (mname)
ns1101.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2018071277
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1072.ui-dns.de
ns1101.ui-dns.org
ns1034.ui-dns.biz
ns1063.ui-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com redirect=_sbdy1ic5c.sdmarc.net
📊 DNS lookups: 2/10

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

2 records
  • workplace-domain-verification=JWKjkwOcjuSDO73kPyl0a9Arb3AgTO
  • SPFv=spf1 include:spf.protection.outlook.com redirect=_sbdy1ic5c.sdmarc.net
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