corebooks.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
corebooks.com
Yes
โœ“ Yes
Amazon SES
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-24 21:03:39 UTC ยท โ†บ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 75.2.70.75 โ†ฉ aacb0a264e514dd48.awsglobalaccelerator.com
  • 99.83.190.102 โ†ฉ aacb0a264e514dd48.awsglobalaccelerator.com

Mail Server IPs

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

SOA Record

Raw SOA molly.ns.cloudflare.com dns.cloudflare.com 2399755454 10000 2400 604800 1800
Primary NS (mname)
molly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399755454
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

trey.ns.cloudflare.com
molly.ns.cloudflare.com

SPF Record

โœ— Missing

No SPF record โ€” domain is unprotected against spoofing.

โš  No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 1 found
zoho._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: zoho

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

All TXT Records

3 records
  • google-site-verification=LjuAi00zGMy5iOWatKQM0l1hVwKCPfrZ0AE1UypxX6Y
  • google-site-verification=Qhpm0ZF3lZXl4ytD9Fgm6rb4QcB0vt-xnkoQu0OdW-I
  • facebook-domain-verification=21mj08nqeak7abmguxbij73k72as9c
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