grossinger.com

Valid Email Server
Domain Lookup › grossinger.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 11:10:06 UTC · ↺ Refresh

MX Hostnames

  • grossinger-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 23.73.207.170 ↩ a23-73-207-170.deploy.static.akamaitechnologies.com
  • 2600:1408:5400:2f::17c3:259a ↩ g2600-1408-5400-002f-0000-0000-17c3-259a.deploy.static.akamaitechnologies.com
  • 2600:1408:5400:2f::17c3:25a2

Mail Server IPs

  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns11.constellix.com dns.constellix.com 2015010109 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010109
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
ns11.constellix.com
ns21.constellix.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:67.206.83.192/29 ip4:69.20.56.0/24 ip4:50.205.86.98 ip4:50.77.149.185 ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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
  • SPFv=spf1 include:spf.protection.outlook.com ip4:67.206.83.192/29 ip4:69.20.56.0/24 ip4:50.205.86.98 ip4:50.77.149.185 ~all
  • MS=ms14651714
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