guidant.com

Valid Email Server
Domain Lookup › guidant.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
guidant.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 22:54:57 UTC · ↺ Refresh

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MX Hostnames

  • guidant-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 204.155.22.18 ↩ bsciweb-cf2.bsci.com

Mail Server IPs

  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA cbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 45 10800 3600 604800 3600
Primary NS (mname)
cbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
45
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

cbru.br.ns.els-gms.att.net
cmtu.mt.ns.els-gms.att.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_u.guidant.com._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

6 records
  • SPFv=spf1 include:_u.guidant.com._spf.smart.ondmarc.com ~all
  • _2c0msn17r1wuqozwrcgxt9z6zk7cpyy
  • _5j9newfmlepcu1hz38vl9ohw6qetjb0
  • _0o8iaiquk8zcafis6zw2nazzuyqvqcp
  • MS=ms70254251
  • 015w67tybyffsckfmmsyct2p442r1gn7
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