upstack.com

Valid Email Server
Domain Lookup › upstack.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
upstack.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 21:55:34 UTC · ↺ Refresh

MX Hostnames

  • upstack-com.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 35.212.96.187

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns1.dnsimple.com
ns100.digicertdns.com
ns101.digicertdns.com
ns102.digicertdns.com
ns2.dnsimple.com
ns3.dnsimple.com
ns4.dnsimple.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:137.116.119.129 ip4:149.72.231.47 ip4:149.72.196.66 include:_spf.google.com include:_spf.salesforce.com include:_spf.act-on.net include:mg-spf.greenhouse.io include:spf.protection.outlook.com include:_spf.sendergen.com include:50826064.spf05.hubspotemail.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 5 found
google._domainkey
selector1._domainkey
selector2._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

11 records
  • 00DHu000002tf8Q=1TBV100000000rF 
  • docusign=43f60ea3-167c-4689-a6b4-4c449e83446e
  • ZOOM_verify_JeLQ32oYYFX4dY2i1URCiK
  • jamf-site-verification=Qe7eGevRjrrkSqvBlZpYxw
  • pendo-domain-verification=mSDGTfMFz1MC7Eg0Jtnkce9mvKE
  • google-site-verification=GfLkvoxpJLjxuqgzhNceThHw89RkVF4P1dO-UmcydCU
  • MS=ms38853006
  • SPFv=spf1 ip4:137.116.119.129 ip4:149.72.231.47 ip4:149.72.196.66 include:_spf.google.com include:_spf.salesforce.com include:_spf.act-on.net include:mg-spf.greenhouse.io include:spf.protection.outlook.com include:_spf.sendergen.com include:50826064.spf05.hubspotemail.net ~all
  • google-site-verification=Q2SuqDtBclqn0_NJhzUrVcZKGmPdnksi_p8oU6PVyPI
  • atlassian-domain-verification=L9wuGXL971SRowNUciz0G0lzNaTUzKRlAxsunqaPse13KvO26uayQQ/EJAlGerRE
  • apple-domain-verification=9rShIAWsKyxmgKLG
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