Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blue84.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 22:44:25 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 5
- us-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 132.148.180.6 ↩ 6.180.148.132.host.secureserver.net
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns7.worldnic.com namehost.worldnic.com 125112416 10800 3600 604800 3600
Primary NS (mname)
ns7.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125112416
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns7.worldnic.com
ns8.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 a include:_netblocks.mimecast.com include:spf.protection.outlook.com include:mail14.elavon.com include:servers.mcsv.net include:_spf.salesforce.com ip4:162.248.51.19 ip4:74.121.51.236 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
⚠ Policy applies to 1% of failing messages only
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=xBNa8VCtKa2KxcazBwRjTr79r2ccwXk28n3fWOrvS1o
- dn9bgmmqcpa01385uv2aoecvad
- knowbe4-site-verification=5edfd9c14d4997b0cef775f83ef77fe2
- SPFv=spf1 a include:_netblocks.mimecast.com include:spf.protection.outlook.com include:mail14.elavon.com include:servers.mcsv.net include:_spf.salesforce.com ip4:162.248.51.19 ip4:74.121.51.236 -all
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