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: mx7.justdial.com
PTR record proves mail server legitimacy
MX: mx7.justdial.com
Mail server at 103.71.205.29
→
PTR Record
No PTR record
⚠️ Mail server mx7.justdial.com (103.71.205.29) lacks a PTR record. Many receiving servers require matching forward and reverse DNS for spam prevention.
Mail Server Identity: mx6.justdial.com
PTR record proves mail server legitimacy
MX: mx6.justdial.com
Mail server at 103.71.205.28
→
PTR Record
No PTR record
⚠️ Mail server mx6.justdial.com (103.71.205.28) lacks a PTR record. Many receiving servers require matching forward and reverse DNS for spam prevention.
Mail Server Identity: mx5.justdial.com
PTR record proves mail server legitimacy
MX: mx5.justdial.com
Mail server at 103.71.205.27
→
PTR Record
Reverse DNS: mx5.justdial.com
Mail Server Identity: mx3.justdial.com
PTR record proves mail server legitimacy
MX: mx3.justdial.com
Mail server at 103.71.205.201
→
PTR Record
No PTR record
⚠️ Mail server mx3.justdial.com (103.71.205.201) lacks a PTR record. Many receiving servers require matching forward and reverse DNS for spam prevention.
Mail Server Reputation: mx7.justdial.com
RBL check ensures server is not blacklisted
MX: mx7.justdial.com
Mail server at 103.71.205.29
→
RBL Status
Not blacklisted
Mail Server Reputation: mx6.justdial.com
RBL check ensures server is not blacklisted
MX: mx6.justdial.com
Mail server at 103.71.205.28
→
RBL Status
Not blacklisted
Mail Server Reputation: mx5.justdial.com
RBL check ensures server is not blacklisted
MX: mx5.justdial.com
Mail server at 103.71.205.27
→
RBL Status
Not blacklisted
Mail Server Reputation: mx3.justdial.com
RBL check ensures server is not blacklisted
MX: mx3.justdial.com
Mail server at 103.71.205.201
→
RBL Status
Not blacklisted
Enforced Encryption Chain
MTA-STS enforces TLS encryption to prevent man-in-the-middle attacks
TLS Support
TLS not verified or unsupported
→
MTA-STS Policy
MTA-STS not configured
⚠️ TLS support could not be verified. MTA-STS requires TLS to enforce encrypted connections. Without TLS, MTA-STS cannot function.
Brand Identity Chain
BIMI displays your logo in email clients, but requires DMARC enforcement
DMARC Enforcement
DMARC policy: quarantine
→
BIMI Record
Brand logo configured
TLS Monitoring Chain
TLS-RPT provides reports about TLS connection failures
TLS Support
TLS not verified or unsupported
→
TLS-RPT Reporting
TLS-RPT not configured
⚠️ TLS support could not be verified. TLS-RPT reports on TLS connection failures, but without TLS support, there's nothing to monitor. You need working TLS encryption before TLS-RPT can provide value.