medcost.com

Valid Email Server
Domain Lookup › medcost.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
medcost.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 22:15:31 UTC · ↺ Refresh

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MX Hostnames

  • medcost-com.mail.protection.outlook.com

MX Priorities

  • medcost-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.66.166.142 (no PTR)
  • 104.20.31.17 (no PTR)

Mail Server IPs

  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns9.worldnic.com namehost.worldnic.com 126050810 10800 3600 604800 3600
Primary NS (mname)
ns9.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126050810
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns9.worldnic.com
ns10.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:216.136.7.217 ip4:216.136.7.210 ip4:198.37.147.129 ip4:74.121.48.31 ip4:64.255.243.50 include:spf.protection.outlook.com include:_spf.messagegears.net include:customers.clickdimensions.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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

7 records
  • ps49gdangol3a4klng7um3427j
  • SPFv=spf1 ip4:216.136.7.217 ip4:216.136.7.210 ip4:198.37.147.129 ip4:74.121.48.31 ip4:64.255.243.50 include:spf.protection.outlook.com include:_spf.messagegears.net include:customers.clickdimensions.com include:_spf.psm.knowbe4.com -all
  • MS=ms83008677
  • PgkxCPuABHc4Aq0XGXpJjoaT41u3aGpGk8V97SHuzmmp3SIH1ZNfVp23NCJHhU6vmf8wk467qqCZV30xmjdfHQ==
  • google-site-verification=vijJaiL7m74dXgsLMOwZfONHCKBXMOqqChXh6BvmwlM
  • bw=Yx5s63HbibWBacwK9Js9tLH8Hq4F4iwxH5BkzDm2kfxR
  • google-site-verification=VVt9YGfHYQ_hCOXxu-AYmInWDUcybZ3lGvSGiaHpwdA
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