cumulus.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
cumulus.com
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-17 19:41:34 UTC ยท โ†บ Refresh

MX Hostnames

  • cumulus-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 216.234.12.21 โ†ฉ cumulusmedia.com

Mail Server IPs

  • 52.101.9.17 (no PTR)
  • 52.101.194.4 โ†ฉ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.11 โ†ฉ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.11.13 โ†ฉ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 โ†ฉ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 โ†ฉ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b โ†ฉ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: โ†ฉ mail-sn1pr0501cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.cumulus.com cmls-dns.cumulus.com 2023081860 1800 600 1209600 900
Primary NS (mname)
dns1.cumulus.com
Admin Email (rname)
cmls-dns@cumulus.com
Serial
2023081860
Refresh
1800s
Retry
600s
Expire
1209600s
Minimum TTL
900s

Nameservers (NS)

dns1.cumulus.com
dns2.cumulus.com
dns3.cumulus.com
dns5.cumulus.com
dns4.cumulus.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:bsvfcloudcmls.cumulus.net ip4:216.234.2.192/28 include:bsvf.cumulus.net include:spf.protection.outlook.com include:cmlsspf.cumulus.net -all
๐Ÿ“Š DNS lookups: 4/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: selector1

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

All TXT Records

14 records
  • onetrust-domain-verification=920591292b694a3fbb72048937f48ac3
  • MS=ms23228418
  • 3XpGQSgIHCM5+zOTje+Ww8E5tKwXe0Agu8CIXAKN+QikjlEq7xfAiegztXV8qaq6ddD4rvyAW7PzfISUcFIqPg==
  • specops-verification-code=d96e17b9-5909-464f-a736-3e4cb38a7b70
  • y8GHFS9jKia8pk4dsp0KjM4UfR1Gpl0aZ4spFaPnxpB5r8Bk54MEO8AHUcqfrFmy/MRotlU3x0wK6g9mWx+ZqQ==
  • facebook-domain-verification=8yp17ic1txn66i3oqmwp8evdsuwq4q
  • apple-domain-verification=oIUVvUFvbdYKRCWP
  • MS=ms39939780
  • ZOOM_verify_-tUp3CcVQWOmg7Vqq9KiDg
  • MS=ms24365211
  • asv=33244c5b0bc67ae23993e0b07ef8bed3
  • SPFv=spf1 include:bsvfcloudcmls.cumulus.net ip4:216.234.2.192/28 include:bsvf.cumulus.net include:spf.protection.outlook.com include:cmlsspf.cumulus.net -all
  • 2463177
  • Audience-verification=9fd70c96-d84d-4044-a2c4-43cdaee0b14f
Full email verification for cumulus.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits