app.smartsheet.com

Valid Email Server
Domain Lookup › app.smartsheet.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
app.smartsheet.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 14:35:15 UTC · ↺ Refresh

MX Hostnames

  • rx1.sparkpostmail.com
  • rx3.sparkpostmail.com
  • rx2.sparkpostmail.com

MX Priorities

  • rx3.sparkpostmail.com: 10
  • rx1.sparkpostmail.com: 10
  • rx2.sparkpostmail.com: 10

A / AAAA Records

  • 34.237.107.221 ↩ ec2-34-237-107-221.compute-1.amazonaws.com
  • 34.197.6.155 ↩ ec2-34-197-6-155.compute-1.amazonaws.com
  • 34.226.86.230 ↩ ec2-34-226-86-230.compute-1.amazonaws.com
  • 23.22.60.82 ↩ ec2-23-22-60-82.compute-1.amazonaws.com
  • 44.216.20.40 ↩ ec2-44-216-20-40.compute-1.amazonaws.com
  • 100.25.242.188 ↩ ec2-100-25-242-188.compute-1.amazonaws.com

Mail Server IPs

  • 54.203.214.124 ↩ ec2-54-203-214-124.us-west-2.compute.amazonaws.com
  • 52.43.60.44 ↩ ec2-52-43-60-44.us-west-2.compute.amazonaws.com
  • 18.236.40.4 ↩ ec2-18-236-40-4.us-west-2.compute.amazonaws.com

SOA Record

Raw SOA ns-1037.awsdns-01.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1037.awsdns-01.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-51.awsdns-06.com
ns-912.awsdns-50.net
ns-1037.awsdns-01.org
ns-1955.awsdns-52.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 exists:%{i}._spf.sparkpostmail.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 exists:%{i}._spf.sparkpostmail.com ~all
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