Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
company3.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:04:48 UTC · ↺ Refresh
MX Hostnames
- company3-com.mail.protection.outlook.com
MX Priorities
- company3-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.168.73.24 ↩ server-3-168-73-24.jfk50.r.cloudfront.net
- 3.168.73.71 ↩ server-3-168-73-71.jfk50.r.cloudfront.net
- 3.168.73.77
- 3.168.73.93
- 2600:9000:2801:200:1b:b6f8:8fc0:93a1
- 2600:9000:2801:9800:1b:b6f8:8fc0:93a1
- 2600:9000:2801:1a00:1b:b6f8:8fc0:93a1
- 2600:9000:2801:1200:1b:b6f8:8fc0:93a1
- 2600:9000:2801:2600:1b:b6f8:8fc0:93a1
- 2600:9000:2801:2200:1b:b6f8:8fc0:93a1
- 2600:9000:2801:1800:1b:b6f8:8fc0:93a1
- 2600:9000:2801:bc00:1b:b6f8:8fc0:93a1
Mail Server IPs
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns95.ultradns.com domain.admin.bydeluxe.com 2015051563 10800 3600 604800 86400
Primary NS (mname)
pdns95.ultradns.com
Admin Email (rname)
domain@admin.bydeluxe.com
Serial
2015051563
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
pdns95.ultradns.biz
pdns95.ultradns.com
pdns95.ultradns.net
pdns95.ultradns.org
pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
pdns4.ultradns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:208.93.244.72 ip4:173.0.113.7 ip4:135.196.24.192/28 ip4:213.235.63.64/26 ip4:94.185.240.0/24 ip4:212.2.3.128/26 ip4:94.185.244.0/24 ip4:195.130.217.0/24 ip4:91.220.42.0/24 ip4:149.11.188.196/32 ip4:52.84.0.0/14 ip4:52.88.0.0/13 ip4:207.34.32.0/20 ip4:52.88.176.170 include:aspmx.sailthru.com include:spfinternal.framestore.com include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 6 found
google._domainkey
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- jumpdesktop=1f0daf10e0f84c6e52601a37d2bfb8b87b6733bb6138b88f99b88696482e
- atlassian-domain-verification=DcYZqwTq05e/rjhqAdl3SKPstLaAtODAiHNZqKXDghHli2z3RLpXxPpiXT/UjJ0a
- _gitlab-pages-verification-code.company3.com TXT gitlab-pages-verification-code=725b5ba69535b034e182ccc97a0f66e0
- SPFv=spf1 ip4:208.93.244.72 ip4:173.0.113.7 ip4:135.196.24.192/28 ip4:213.235.63.64/26 ip4:94.185.240.0/24 ip4:212.2.3.128/26 ip4:94.185.244.0/24 ip4:195.130.217.0/24 ip4:91.220.42.0/24 ip4:149.11.188.196/32 ip4:52.84.0.0/14 ip4:52.88.0.0/13 ip4:207.34.32.0/20 ip4:52.88.176.170 include:aspmx.sailthru.com include:spfinternal.framestore.com include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.protection.outlook.com ~all
- docusign=35944887-b854-42d2-a233-b3a1122e4ea8
- autodesk-domain-verification=R3uwEP88WEbzoWljBBW3
- google-site-verification=8bWDn40WXdKKxvVrRRylnVzPQE1XgjTX2dQO5Sh5vDM
- cursor-domain-verification-kqajp1=BQTKitITd5sfMlCrPomDHVxtu
- adobe-idp-site-verification=e8e920f08ff3e8086350939a1b15144161464fb338f3151147af94ee36b52a9f
- apple-domain-verification=o6Lnzp8uvTGdtAkh
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for company3.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits