Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biztree.com
Yes
✓ Yes
Amazon SES
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 03:37:19 UTC · ↺ Refresh
MX Hostnames
- inbound-smtp.us-east-1.amazonaws.com
MX Priorities
- inbound-smtp.us-east-1.amazonaws.com: 10
A / AAAA Records
- 52.204.222.210 ↩ ec2-52-204-222-210.compute-1.amazonaws.com
Mail Server IPs
- 3.211.210.226 ↩ ec2-3-211-210-226.compute-1.amazonaws.com
- 54.164.173.191 ↩ ec2-54-164-173-191.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
- 54.197.5.236 ↩ ec2-54-197-5-236.compute-1.amazonaws.com
SOA Record
Raw SOA
ns.rackspace.com hostmaster.rackspace.com 1774544392 86400 7200 604800 300
Primary NS (mname)
ns.rackspace.com
Admin Email (rname)
hostmaster@rackspace.com
Serial
1774544392
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns.rackspace.com
ns2.rackspace.com
SPF Record
✓ Strict (-all)
v=spf1 include:amazonses.com include:servers.mcsv.net include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com include:mail.zendesk.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
google._domainkey
default._domainkey
k1._domainkey
✓ Public key: 216 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
9 records- atlassian-domain-verification=92YqaQQYs41jFy26e8QL4qFIgwfRjWedypghBTTMAtp47PkCx7KstdabgPxX6ZbB
- google-site-verification=YvLVB4d9pCq17loAMyM6PfQ7_2chI6ky8oLhYMC0Qyo
- 00d1u0000010cc8uam
- SPFv=spf1 include:amazonses.com include:servers.mcsv.net include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com include:mail.zendesk.com -all
- google-site-verification=BdyOCXSLGNlzGiT4xSEomjw7EwVKOC1sjm8ZEX7o0Hw
- google-site-verification=BUteQL3brBkbFf9UOSPcdRC9DdUv9UnHksPiNtkG824
- google-site-verification=hXtJ9Eb7uyiFS70P9cBdgVR8KwynPnt66EhP-fC-PyA
- google-site-verification=Y8zUtJy3RXLWFj72x9kF83WKc9i1B5lNoOH6vKXIzsE
- facebook-domain-verification=umw2imyoo1cbobxgcv6l7d8baegs5d
Full email verification for biztree.com
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