Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sothebysinstitute.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 10:44:04 UTC · ↺ Refresh
MX Hostnames
- sothebysinstitute-com.mail.protection.outlook.com
MX Priorities
- sothebysinstitute-com.mail.protection.outlook.com: 0
A / AAAA Records
- 52.73.201.93 ↩ ec2-52-73-201-93.compute-1.amazonaws.com
- 34.228.88.5 ↩ ec2-34-228-88-5.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-136.awsdns-17.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-136.awsdns-17.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-136.awsdns-17.com
ns-1415.awsdns-48.org
ns-1890.awsdns-44.co.uk
ns-550.awsdns-04.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:52.91.97.29 ip4:52.44.12.96 ip4:13.111.3.55 include:spf.protection.outlook.com include:aspmx.pardot.com include:_spf.psm.knowbe4.com include:bounce.s7.exacttarget.com include:cust-spf.exacttarget.com include:spf.watermarkinsights.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
11 records- sending_domain1047523=b9f7be4428f00441e155176b553602652142a3a7c01fd971fbfc22e938dd6f33
- SPFv=spf1 ip4:52.91.97.29 ip4:52.44.12.96 ip4:13.111.3.55 include:spf.protection.outlook.com include:aspmx.pardot.com include:_spf.psm.knowbe4.com include:bounce.s7.exacttarget.com include:cust-spf.exacttarget.com include:spf.watermarkinsights.com -all
- google-site-verification=AiAD1erofqIfRYXLGZoj_KBjVZ9VgjIlDRPpIWwj3WQ
- google-site-verification=NTpFgsVEDevYd3jWIMNQsh155bGVX3nb4AiGfaE-zjs
- google-site-verification=RJ_cYpNrha2swCFIiq0nTDhTgFrjrlsb9qGHs2YMpb0
- google-site-verification=TQZMqp0mwlBc-P1lmIkuHZPTuno0sLkbFzX6_1MgmuM
- mandrill_verify.Nw3dsBSLdDXLQAPR1UrUOQ
- pardot1047523=05d041716da4f78c50bff86ba0119852942cfa7fda15e04839e01b2bb8124b1a
- pardot1047523=525792e7d4808497f41f56ba79f6bf4bf3555842d40abe0e75d5681663c292c1
- pardot251802=7c2082846feadb46e4615a0bff8b6b910ed469f430f650befb69e9d19ef52c1d
- pardot916501=41ec44a468db74f40d73252c350429f8a230fa13dfc7f632f9b33ba9aac74741
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