Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackstone.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 22:44:50 UTC · ↺ Refresh
MX Hostnames
- mxa-00040b01.gslb.pphosted.com
- mxb-00040b01.gslb.pphosted.com
MX Priorities
- mxb-00040b01.gslb.pphosted.com: 10
- mxa-00040b01.gslb.pphosted.com: 10
A / AAAA Records
- 172.66.0.43 (no PTR)
- 162.159.140.43 (no PTR)
Mail Server IPs
- 205.220.176.153 ↩ mx0b-00040b01.pphosted.com
- 205.220.164.153 ↩ mx0a-00040b01.pphosted.com
SOA Record
Raw SOA
pdns1.ultradns.net domain\.registrar.blackstone.com 2017086610 21600 3600 1728000 3600
Primary NS (mname)
pdns1.ultradns.net
Admin Email (rname)
domain\@registrar.blackstone.com
Serial
2017086610
Refresh
21600s
Retry
3600s
Expire
1728000s
Minimum TTL
3600s
Nameservers (NS)
pdns5.ultradns.info
pdns6.ultradns.co.uk
pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
pdns4.ultradns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
52 records- jamf-site-verification=aaXq9K_DISFY_DL81yUDpw
- amazonses:4a2ZzKfVdV5s1TzURcUBJB8TdmwykqGI0hbQ37ba+pg=
- google-site-verification=60UFEpMu8mJVjwKqKDANjSB9CkTwYTThfgw8abzaT9g
- ZA=aXqggDIwhuONRthazVkbZw==
- globalsign-domain-verification=288565ebd5b93f0e0d95c4d0fdea1e3a
- globalsign-domain-verification=48002ED3649ACC15774E75D64EC904CB
- amazonses:So0AQC8UlzQE5U4yP89EckKewPtvoUS/583/2BTbcxI=
- exa-domain-verification-jq70xz=CyYYDKAyPpybylmn2ONKSRYm2
- securiti-verification-id=qPny6o2vNEY0Y5ZOqWjsWYkTzfSNVFLotq1HCazrWFg=
- wiz-domain-verification=1fb7bd29e8cb011c6711134ba48a4485a988344163ce7e0f043fd0c120a7047e
- adobe-idp-site-verification=2f1b41c3e7d24903190f7a31c691e814b89696b7df5f088671368136782ee28c
- globalsign-domain-verification=c5c00cb0b8ed61f34b49ce7fded91386
- cursor-domain-verification-476f1b=l9mUK9JYXzVqAog6KoRqiZtk5
- globalsign-domain-verification=6c7e82607d8a2d9f4a4a455077cae026
- _lwdbwuz7ytq0cfir4uzefdrlimjpq7d
- docusign=59bae9fc-ca03-47ba-8347-3f782b65ead3
- globalsign-domain-verification=25701713576a838db9fc8a107e6cac78
- google-site-verification=WLnI2RqZNwc44EqE8vMx8nJM9cRALpNt3pBG62WBVO8
- slack-domain-verification=lGHhua2j3WauB1Krf5OTqvCYorw4bk9uTkipBtvE
- MS=937661B0C3B3BB3E4E6ECCD022221F59A2AB2275
- apperio-domain-verification=3e49bead34da45078fd245afb34f94d0
- MS=ms34192192
- pardot_213192_*=026e5ead314cc4d5f0637796b8da328244bb880da537ce2420e63461231bdcfc
- google-site-verification=ftGJfBpOOPRg2_7NZr5eQ9qeB1Qoyt4F0VDX7i6US2w
- _dkmedx8kpcxyuvbug8fmcohzqp0c9rp
- canva-site-verification=o39Q-9z-YDMmzVGmdC7u0Q
- amazonses:xzU9HWl0OA/SnH5ycdwZjyWGu6L7Cxk5S4WwUswpeEs=
- openai-domain-verification=dv-08a2yj3X20kgAyQwmpzRmBaJ
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- google-site-verification=iB7ub4KgPAtZpPMD-Sn9BJgmXPdXOWIyAojBZb90Brs
- docusign=72cd58a5-d40a-475f-aed1-b8234a615bee
- uber-domain-verification=8eb5eb07-39ad-4954-a27f-8318a4fcd2dc
- globalsign-domain-verification=1cd6763eb4d7afaedaa26a5bb94c671d
- ZBj8JpZ4oey2ey1OvsObrqS2V60MCITahd+/BKq9M1bOT75U94VZeaNIChPeBOT4Ay0wJreCrfc5ae8Vd1c2IA==
- sending_domain1037233=1ecf0174b43814ce176dc4fbc20e0cd293658ceea56438268abf36b0250b9016
- globalsign-domain-verification=T58HUX7rWa-GKRitS9MIfUucJ7fLGg4FuV0pGBYd4c
- globalsign-domain-verification=c213fddc27e513e919d2f67912bd7363
- google-site-verification=INi-ye5wh8FhoPAMuMNxzkLyP-XnOIh9bYSS57gBK48
- wrike-verification=MjY0MTM0MDpiZGNjNjgzNzY2YjVjNmFlZjc4ZWJiNGE5N2QzMTFiODMwNzE4ZGVhMjhmZjI2MTNjOWUwYTdiNjQzYzJiNDVh
- _uprze3t663hx8pdl49fucn1nk6myi11
- atlassian-domain-verification=7tYawRGQvfLkCGg4P9iVCqwM00mEdVsfYH9y1w0c/Jmqkju6NnojULdfZNh8vF+U
- smartsheet-site-validation=q1RIx20wOelDPaQkDQpbpMngxBlXa5fG
- 7xOEm+ynZ13d115Bp0MKpmw2cerVjV+T9klwKxUZ+M7q/Kn73/Ap/fkW/xvAWzXJSF5HPK1mafdSdX83sB1Zlw==
- autodesk-domain-verification=Qg-66h94222EwAaDf6fh
- _e7ottdry8oyx80gxccs1c05u20bguos
- globalsign-domain-verification=9EF674C2234568A1CCE8B820CEB30451
- apple-domain-verification=rf90X5ukqhPUqPsH
- facebook-domain-verification=81m1q7wuipgduq8rc8uyl14wqr9jy3
- pardot1037233=d1d9ffc7793e278c915496e6fa05613063d89bb5cb3295fc6afa310994882a9c
- paloaltonetworks-site-verification=bd085356d9c50338c42deb7a89a13eafe291e3777b26e0ccedcfc8eae8160574
- _r6hsscfbfg5bae828ymtb7fdhi8aa9l
- elevenlabs=5RrgLUPN_Ri8BTvx7OAbkY6gDxXYGjfLFyGqj4OfW2A
Full email verification for blackstone.com
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