trx.costco.com

Valid Email Server
Domain Lookup › trx.costco.com

Domain Overview

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

Checked via [email protected] · 2026-03-21 16:19:30 UTC · ↺ Refresh

MX Hostnames

  • va7.feedback.adobe.net

MX Priorities

  • va7.feedback.adobe.net: 10

A / AAAA Records

  • 192.243.228.1 ↩ r1.campaign.adobe.com
CNAME → trx.costco.com.cname.cjm.adobe.com

Mail Server IPs

  • 52.242.103.220 (no PTR)

SOA Record

Raw SOA ns-1984.awsdns-56.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1984.awsdns-56.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-603.awsdns-11.net
ns-1283.awsdns-32.org
ns-143.awsdns-17.com
ns-1984.awsdns-56.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 redirect=_spf.trx.costco.com.cname.cjm.adobe.com
📊 DNS lookups: 1/10

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

3 records
  • google-site-verification=bw0WKccKDEtn1juVAHjJ9NgMxaweM6UoB7bB1nx2TlI
  • SPFv=spf1 redirect=_spf.trx.costco.com.cname.cjm.adobe.com
  • yahoo-verification-key=wk6QH6EeP+Nghjff0zgl0KKntlDKhxguQ3urHpqB3no=
Full email verification for trx.costco.com

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