Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nucor.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 02:23:33 UTC · ↺ Refresh
MX Hostnames
- nucor-com.mail.protection.outlook.com
MX Priorities
- nucor-com.mail.protection.outlook.com: 0
A / AAAA Records
- 57.152.97.51 (no PTR)
Mail Server IPs
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
ns11.constellix.com dns.constellix.com 2015010668 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010668
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:128.136.42.208 ip4:128.136.46.135 ip4:148.66.218.165 ip4:148.66.218.134 include:customers.clickdimensions.com include:_spf.salesforce.com include:49675570.spf01.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
28 records- csverification:mlhxCcT4uEDurbqfhnQ1a94Vi2svXwPCS9KZHi9Q
- google-site-verification=zdQzzYNx_gSVLbzeeq_1JVBJ5ZuWP7hrwxRmv1rPTQw
- ms-domain-verification=c4e27131-0f99-4c21-8beb-1322252c92c2
- ms-domain-verification=b9f17b26-f918-4a8f-9d3f-d9e1dec431b9
- auth0-domain-verification=732P16LZhsdpTD44895AwzbLIGNcOXh1
- SPFv=spf1 include:spf.protection.outlook.com ip4:128.136.42.208 ip4:128.136.46.135 ip4:148.66.218.165 ip4:148.66.218.134 include:customers.clickdimensions.com include:_spf.salesforce.com include:49675570.spf01.hubspotemail.net ~all
- csverification:p5mzvdx8UP0kHY9nEC5TwW3RR9ke5wZBBdAHYmCN
- atlassian-domain-verification=6luU7TEJ8jD8HGJlOucKN2DE5aaTWtO2MMVdyZSv85FH4hbrdPizjQrL3RNjhtQz
- dell-technologies-domain-verification=nucor.com_12346d22-0919-4d09-b7f0-fe4071e7ab29_1716989484
- k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDGoQCNwAQdJBy23MrShs1EuHqK/dtDC33QrTqgWd9CJmtM3CK2ZiTYugkhcxnkEtGbzg+IJqcDRNkZHyoRezTf6QbinBB2dbyANEuwKI5DVRBFowQOj9zvM3IvxAEboMlb0szUjAoML94HOkKuGuCkdZ1gbVEi3GcVwrIQphal1QIDAQAB;
- d365mktkey=4pQHDYIvEOHmailIRIfpIFGghW0hsQOj6Kx4jrqxnqAx
- 1password-site-verification=H73L6WW7XZG3BKDECHTEQQDJVI
- docusign=cedefe61-de54-4b16-84de-dc403d1d793d
- MS=ms67729324
- Foxit-domain-verification=1dd9a25769b7dea5cf34e6639708e4de
- apple-domain-verification=MuFz8JZxOqQ3ttz6
- sending_domain83702=6468940ce590d8dccdd1d5caf6b25e495e5cda6fd4e44a4deca37883b51dcc5b
- e2ma-verification=cgk3
- wrike-verification=NjM5OTMwMzo3ODIwYTU5M2QzNzhhZDIzZTgwNThiMGJlNDkzZjY4NDc2OTJlNjIzMzY0YjdkODcyYjZjMDQ1YjVkMTU0YzM3
- vmware-cloud-verification-bf828b4a-dc14-4e55-a8df-3029f6595a78
- airtable-verification=b1c9e138496e8e4722dea21f14e6c282
- openai-domain-verification=dv-EVq4jUtkvqNHsOlsQNxZDq4k
- google-site-verification=a5kcpUn_hr8bKo-elstIgXIDodMNk8-wQ-m6xv8JK7U
- atlassian-domain-verification=+brkqyYdB4sBA6A6FubQsejbVnPVI7YnL1lmDEl2BCQBHDXb+rqL9XyT+L6IP6vD
- Dynatrace-site-verification=4870f82c-782c-44b5-ba4e-eadc851f128f__hv6ng2e93uaq38g664lr8msj7o
- anthropic-domain-verification-3878eb=jTG2cjeIekRQ4OYInFkjB4qwT
- cisco-ci-domain-verification=5f6790b6ca43d167005b57ef4becba28df6c226852090ed7fbfd744a0ada9851
- LA05KdQr5AuI860PK335wt+K+yH2wHjD3VMHhdAiJTRrvlpmqzxY7vktmC6Y5qNB7AGQVvRawZgIJOvYo+uaBQ=
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