Identity
96
A
ractersentry.com
Posture Score: 98/100
Scanned May 9, 2026 at 5:27 AM UTC
Score History
Attack Surface
98
Reputation
100
Identity Findings
Void lookup: include:_spf.ractermx.com
The mechanism include:_spf.ractermx.com returns no records, wasting a DNS lookup.
💡 Remove mechanisms that reference non-existent domains.
Multiple MX records but all resolve to same IP
All MX hostnames resolve to the same IP address, providing no actual redundancy.
💡 Point secondary MX records to a different server IP for true failover.
Shared IP 82.221.100.161 used by multiple MX servers
The IP 82.221.100.161 is shared across 2 MX hostnames, reducing redundancy.
💡 Use unique IP addresses for each MX server for better redundancy.
NS TTL mismatch between parent and authoritative zone
The NS record TTL in the parent zone (~7196s) differs significantly from the authoritative zone (~172800s).
💡 Align NS record TTLs between the parent zone delegation and the authoritative zone.
SPF record length OK (37 bytes)
SPF record is within safe DNS packet size limits.
DKIM records are valid
DKIM records found and validated for selectors: default
DKIM cryptographic configuration is compliant
No RFC 8301 compliance issues detected in DKIM key configuration.
DKIM key strength indicates modern key management
All DKIM keys use RSA-2048+ or Ed25519, consistent with current best practices.
All external report destinations authorized
External DMARC report destinations have valid authorization records per RFC 7489 §7.1.
Subdomains protected (sp=quarantine)
DMARC subdomain policy enforces quarantine or reject on unauthenticated subdomain mail.
No deprecated DMARCbis tags present
The DMARC record does not use any tags deprecated in DMARCbis (pct, rf, ri).
MX records are valid
All MX records are properly configured.
MTA-STS and TLS-RPT are properly configured
MTA-STS policy is enforced and TLS reporting is configured.
TLS-RPT report destinations are reachable
All TLS-RPT rua= URIs point to resolvable domains.
ARC support likely available
MX server software appears to support ARC headers for authentication preservation.
Meets bulk sender authentication requirements
Domain has SPF, DKIM, and DMARC — meeting Google/Yahoo 2024 bulk sender requirements for email authentication.
SMTP security checks passed
No open relay, VRFY/EXPN, or banner disclosure issues detected.
SMTP RFC 5321 compliance checks passed
The mail server accepts postmaster@ and abuse@ and uses a valid FQDN in EHLO.
STARTTLS downgrade resistance is adequate
STARTTLS is supported with modern TLS and protected by MTA-STS and/or DANE.
NS delegation is properly configured
All nameservers are responsive, consistent, and properly secured.
DNS responses are consistent across all nameservers
All authoritative nameservers return consistent answers with proper AA flags.
DKIM2 not detected
No DKIM key record with v=2 was found across common selectors. DKIM2 is an emerging standard and not yet widely deployed.
DMARC alignment: adkim=r, aspf=r
DKIM alignment is relaxed, SPF alignment is relaxed.
DMARCbis np tag absent
The DMARC record does not include the np (non-existent subdomain policy) tag. Consider adding np=reject to protect non-existent subdomains under DMARCbis.
DMARCbis psd tag absent
The DMARC record does not include the psd (public suffix domain) indicator. Consider adding psd=n to explicitly identify this as an organizational domain.
REQUIRETLS not advertised
The primary MX does not advertise REQUIRETLS (RFC 8689). This is an emerging standard — MTA-STS and DANE provide adequate TLS enforcement for most deployments.
No DANE/TLSA records found
DANE is not configured for any MX server. This is optional but provides strong certificate binding.
No BIMI record found
BIMI is not configured. Your brand logo will not display in supporting email clients.
Open mail ports on mail2.ractermx.com
Detected open mail-related ports: 25, 110, 143, 587, 993, 995
Domain is IPv4-only
No AAAA records found for the domain, MX servers, or nameservers. The domain operates on IPv4 only.
RFC 8058 one-click unsubscribe assessment
DKIM signing is configured. RFC 8058 compliance depends on List-Unsubscribe and List-Unsubscribe-Post headers being included in outbound messages and DKIM signatures.
MX IP network diversity
All MX IPs are in the same /16 network. Consider diversifying across networks for resilience.
SOA record parameters
Serial: 2026050605, Refresh: 10800s, Retry: 3600s, Expire: 604800s, Min TTL: 3600s
Authorized certificate authorities
CAA records restrict certificate issuance to: letsencrypt.org
Attack Surface Findings
DNS ANY query returns 10 record(s)
The DNS server responds to ANY queries with 10 record(s). The low record count limits amplification risk, but ANY responses still aid reconnaissance.
💡 Configure the DNS server to refuse or minimize ANY query responses per RFC 8482.
Domain enumerability: low
The domain has low enumerability. Proper NSEC3 configuration and limited CT exposure reduce the attack surface.
No subdomain takeover risks detected
All checked subdomains have valid, responsive targets.
All MX records resolve correctly
No dangling MX records detected — all MX hostnames resolve to valid IP addresses.
Explicit MX records present
The domain has explicit MX records — no implicit A-record fallback delivery.
No internal information leakage detected
No non-routable IP addresses or internal references were found in public DNS records.
No email autodiscovery endpoints detected
No Microsoft Autodiscover, Mozilla Autoconfig, or email SRV records were found.
0 subdomain(s) discovered for ractersentry.com
Subdomains were enumerated via Certificate Transparency logs, DNS wordlist brute-forcing, and DNS record analysis.
0 certificate(s) found in CT logs
Certificate Transparency logs contain 0 certificate(s) for ractersentry.com and its subdomains. Each certificate reveals subdomain names.
NSEC3 authenticated denial of existence
The domain uses NSEC3 with 10 iteration(s) and salt 'ABCD'.
DNSSEC is enabled
DNSKEY and/or DS records are present, indicating DNSSEC is configured.
Reputation Findings
HSTS enabled with preload on ractersentry.com
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
security.txt present
Found security.txt at https://ractersentry.com/.well-known/security.txt.
TLS certificate valid for 75 days
Certificate for ractersentry.com expires on 2026-07-23.
Certificate issued by E8
The certificate for ractersentry.com is issued by a third-party CA.
Signature algorithm: ecdsa-with-sha384
The certificate for ractersentry.com uses an acceptable signature algorithm.
ECC key: 256 bits
The certificate for ractersentry.com uses an adequate ECC key of 256 bits.
SCTs present in certificate
The certificate for ractersentry.com contains Signed Certificate Timestamps.
No weak ciphers detected
No known weak cipher suites detected on ractersentry.com.
Domain valid for 350 days
Domain ractersentry.com expires on 2027-04-24.
Domain transfer and delete locks enabled
Domain ractersentry.com has clientTransferProhibited and clientDeleteProhibited locks.
TLD has good reputation
The .com TLD is not on known abuse watchlists.
DMARC reporting destinations look legitimate
DMARC rua/ruf addresses do not point to known URL shortener services.
MX records point to stable infrastructure
No MX records point to known dynamic DNS service domains.
Strong TLS configuration on primary MX
Primary MX (mail.ractermx.com) uses TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 including Forward Secrecy.
SMTP banner matches infrastructure identity
The SMTP banner (mail.racter.com) aligns with the MX hostname (mail.ractermx.com).
No registered typosquat domains detected
None of the common typosquat mutations of this domain appear to be registered by third parties.
Google Safe Browsing DNS check — no flag detected
DNS-based Safe Browsing lookup returned no results. Full verification requires the Google Safe Browsing API key.
Abuse contact lookup failed
Could not query abuse contact information.
PhishTank — API key required
PhishTank phishing database check requires an API key.
Sender Score — API key required
Sender Score reputation check requires an API key.
Cisco Talos — API key required
Cisco Talos IP reputation check requires an API key.
Could not connect to webmail.ractersentry.com
HTTPS request to https://webmail.ractersentry.com failed or timed out.
WHOIS registration data
Registrar: GoDaddy.com, LLC | Created: 2026-04-24 | Expires: 2027-04-24 | Updated: 2026-04-24
WHOIS privacy protection enabled
Domain ractersentry.com has WHOIS privacy/redaction enabled.
Dependency Chains
DMARC Authentication Chain (SPF)
DMARC uses SPF to verify that emails come from authorized servers
SPF Record
SPF record found and configured
→
DMARC Policy
DMARC policy: quarantine
DMARC Authentication Chain (DKIM)
DMARC uses DKIM to verify that emails have not been tampered with
DKIM Signature
DKIM signature configured
→
DMARC Policy
DMARC policy: quarantine
Mail Server Identity: mail2.ractermx.com
PTR record proves mail server legitimacy
MX: mail2.ractermx.com
Mail server at 82.221.100.161
→
PTR Record
Reverse DNS: mail.racter.com
Mail Server Identity: mail.ractermx.com
PTR record proves mail server legitimacy
MX: mail.ractermx.com
Mail server at 82.221.100.161
→
PTR Record
Reverse DNS: mail.racter.com
Mail Server Reputation: mail2.ractermx.com
RBL check ensures server is not blacklisted
MX: mail2.ractermx.com
Mail server at 82.221.100.161
→
RBL Status
Not blacklisted
Mail Server Reputation: mail.ractermx.com
RBL check ensures server is not blacklisted
MX: mail.ractermx.com
Mail server at 82.221.100.161
→
RBL Status
Not blacklisted
Enforced Encryption Chain
MTA-STS enforces TLS encryption to prevent man-in-the-middle attacks
TLS Support
Mail servers support TLS encryption
→
MTA-STS Policy
Mode: enforce
Brand Identity Chain
BIMI displays your logo in email clients, but requires DMARC enforcement
DMARC Enforcement
DMARC policy: quarantine
→
BIMI Record
BIMI not configured
⚠️ BIMI record is missing. Even with DMARC enforcement, you need to configure BIMI to display your brand logo in supported email clients.
TLS Monitoring Chain
TLS-RPT provides reports about TLS connection failures
TLS Support
Mail servers support TLS encryption
→
TLS-RPT Reporting
TLS failure reporting configured
Security Checks
MX Records
✓
SPF Record
✓
DKIM Record
✓
DMARC Policy
✓
BIMI Record
✗
CAA Records
✓
DNSSEC
✓
MTA-STS
✓
TLS-RPT
✓
Embed Badge
Display your domain's security grade on your website or README:
<img src="https://scan.ractermx.com/badge/ractersentry.com.svg" alt="Email Security Grade">
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