rbccollinfo.rbc.com

Valid Email Server
Domain Lookup › rbccollinfo.rbc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rbccollinfo.rbc.com
Yes
✓ Yes
Amazon SES
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 16:32:37 UTC · ↺ Refresh

MX Hostnames

  • inbound-smtp.us-east-1.amazonaws.com

MX Priorities

  • inbound-smtp.us-east-1.amazonaws.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 54.164.173.191 ↩ ec2-54-164-173-191.compute-1.amazonaws.com
  • 3.211.210.226 ↩ ec2-3-211-210-226.compute-1.amazonaws.com
  • 54.197.5.236 ↩ ec2-54-197-5-236.compute-1.amazonaws.com
  • 44.210.166.32 ↩ ec2-44-210-166-32.compute-1.amazonaws.com
  • 44.206.9.87 ↩ ec2-44-206-9-87.compute-1.amazonaws.com

SOA Record

Raw SOA edns3.ultradns.com premiumdns.support.neustar 2019100122 600 600 1209600 300
Primary NS (mname)
edns3.ultradns.com
Admin Email (rname)
premiumdns@support.neustar
Serial
2019100122
Refresh
600s
Retry
600s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

edns3.ultradns.com
edns3.ultradns.net
edns3.ultradns.org
ns7.ultradns2.com
ns7.ultradns2.org
edns3.ultradns.biz

SPF Record

✓ Strict (-all)
v=spf1 ip4:207.45.164.78 ip4:207.45.164.29 ip4:207.45.164.62 ip4:207.45.164.192 include:amazonses.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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

✗ 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 ip4:207.45.164.78 ip4:207.45.164.29 ip4:207.45.164.62 ip4:207.45.164.192 include:amazonses.com -all
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