Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optimum.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 18:19:11 UTC · ↺ Refresh
MX Hostnames
- optimum-com.mail.protection.outlook.com
MX Priorities
- optimum-com.mail.protection.outlook.com: 5
A / AAAA Records
- 18.235.120.168 ↩ ec2-18-235-120-168.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
authns1.cv.net postmaster.optimum.com 2013110386 7200 600 604800 900
Primary NS (mname)
authns1.cv.net
Admin Email (rname)
postmaster@optimum.com
Serial
2013110386
Refresh
7200s
Retry
600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
authns1.cv.net
authns1.cvnet.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a include:spf.protection.outlook.com include:cablevision.com include:spf-0016c601.pphosted.com include:_spf-dc8.sapsf.com ip4:12.232.86.225 ip4:12.232.86.226 ip4:12.232.86.104 ip4:12.232.86.4 ip4:129.146.146.59 ip4:149.72.231.47 ip4:69.25.227.128/25 ip4:74.217.49.0/25 include:mail.zendesk.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
32 records- atlassian-sending-domain-verification=33de6e5c-8148-499a-801b-380608343893
- globalsign-domain-verification=9D59472DBFA8D3F37E61B1D5D1901C0E
- google-gws-recovery-domain-verification=63377456
- _globalsign-domain-verification=D2LW4Wv3Htt2EvqnLCmEHca7DDbIQcsrEzE78xzhEM
- astro-domain-verification=cm98omf9i1wv401mah9bk7wli
- SPFv=spf1 mx a include:spf.protection.outlook.com include:cablevision.com include:spf-0016c601.pphosted.com include:_spf-dc8.sapsf.com ip4:12.232.86.225 ip4:12.232.86.226 ip4:12.232.86.104 ip4:12.232.86.4 ip4:129.146.146.59 ip4:149.72.231.47 ip4:69.25.227.128/25 ip4:74.217.49.0/25 include:mail.zendesk.com ~all
- globalsign-domain-verification=2FF465A197322DBF75523222E1543989
- globalsign-domain-verification=F44296C16917CA97F75EC3F4301C1C5E
- jamf-site-verification=QtxJeABvBCA6sGhn7qPDNQ
- qase-bac3004329cbdb9b55aa69726d91c605389a48cf
- google-site-verification=84odWyTkqCRKHRcZFlreeHJQCmecF5bLiMJTj90NozU
- 00D00000000hgQC=1TBUl00000000w5
- apple-domain-verification=HuAO5qQQJwbutePs
- apple-domain-verification=jZKztDNO1BhiBh0WubkRqkYbzgg37nvwXHYoPmR23ig
- atlassian-domain-verification=sPlYODO/9qyfnAkIXkQTMdQzP3hclGw3EcPjtqufrjSsoOFR335flitqz95iIr/8
- cloudflare-verify.optimum.com=862912514-142586491
- globalsign-domain-verification=49EE694BA7F841BB5FD6BBF7D9A611BF
- google-site-verification=RKBdz5DAVQIqU1kYhIm-hINQPUbuhQyN4I3m-GXDbpE
- google-site-verification=eupX9kP4KTn1yWJtB9JA_0S42Cj1ll3ik5t0HDkhcCo
- globalsign-domain-verification=aafa5d932a960111ee4605010cb26e74
- google-site-verification=AHPT8Qv9eSQiHgKBTUZzlgEMdM8FrX4Iq0Y7ywQ_dv0.
- globalsign-domain-verification=60d4c8ad7cdc8a1c568b511b01450da3
- samsung-domain-verification=e57dd2f8-4ca5-4a7e-8f3b-e22a1a236a3d
- successfactors-site-verification=ZmNhODA5ZGM4MjFlMzI4MTg1NWEzMjQ5MjRkZDRmN2E0MzRjNjY2NTViMGRiZDhmODVhODA3NjQxZDhhNzIxYQ==
- rovag_verification_token=8B329630E7D542498EC8D8F76229C729
- globalsign-domain-verification=CB9862BB1E8235FD54E570E31D55A8F1
- omnissa-connect-verification-00d00540-4c93-4ddd-b24f-ebea11f17ec4
- DMARCv=DMARC1; p=none; rua=mailto:[email protected]
- fastly-domain-delegation-00232645-2025227
- globalsign-domain-verification=0AAF8E7BC8FA8F6001A16ED517279320
- wiz-domain-verification=a726e4bc4fcae0c150888cfa4860afefe7bcc86934a5336a4e53665370100df1
- MS=ms10985106
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