Email Authentication Check

postgressummit.us

This gap analysis verifies compliance with email authentication standards to protect against spoofing and phishing.

DMARC SPF BIMI TLS-RPT MTA-STS

All data displayed is public and provided by the DNS system.

Last checked about 4 hours ago

0 out of 110
Needs Work

Domain Health Score

Your email authentication needs attention. Important security measures are missing or misconfigured.

SPF
Sender Policy Framework
26 / 30
DMARC
Domain-based Message Authentication
22 / 50
BIMI
Brand Indicators for Message Identification
0 / 20
TLS
TLS Security (MTA-STS & TLS-RPT)
0 / 10

Top Recommendation

+16

Upgrade DMARC policy to quarantine or reject for stronger protection

DMARC improvement

0

DMARC Check Results

22 / 50 points

Score Breakdown

DMARC record published
+10
Syntax valid
+5
None policy (monitoring only)
+4 / 20
Aggregate reporting (rua) not configured
0 / 10
Forensic reporting (ruf) configured with issues
+3 / 5

DMARC check passed: properly configured

DMARC record is valid and configured correctly.

_dmarc.postgressummit.us TXT Entry:

v=DMARC1; p=none; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r; rf=afrf; ri=86400

Policy (p)

none

DKIM Alignment (adkim)

Relaxed (r)

SPF Alignment (aspf)

Relaxed (r)

Understanding alignment modes

DKIM Alignment (adkim)

Relaxed mode: The DKIM signature's domain can be a subdomain of the "From" header domain.

SPF Alignment (aspf)

Relaxed mode: The SPF "Return-Path" domain can be a subdomain of the "From" header domain.

Note: When alignment parameters are not specified, DMARC defaults to relaxed mode for both DKIM and SPF alignment.

Reporting (RUA/RUF)

Aggregate Reports

Not Configured
Learn more about aggregate reports →

Forensic Reports

Configured with Issues
[email protected]
External Domain Verification
[email protected]

Record not found

Expected: postgressummit.us._report._dmarc.postgresql.org

Learn more about forensic reports →

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External Domain Verification Issues

  • RUF (Forensic Reports) external domain verification failed

External domains must publish verification records to receive reports. Delivery may fail without proper verification.

0

BIMI Check (default selector)

0 / 20 points

Score Breakdown

BIMI record published (optional)
0 / 5

No BIMI Record Found

Publish a TXT record at default._bimi.postgressummit.us with v=BIMI1, logo URL (l=) and optional verified mark certificate (a=).

Create BIMI Record for postgressummit.us
0

SPF Record Check Results

26 / 30 points

Score Breakdown

SPF record published
+10
Syntax valid
+5
Soft fail policy (~all)
+6 / 10
No configuration warnings
+5

SPF record is valid.

postgressummit.us TXT SPF Entry:

v=spf1 include:_spf.postgresql.org include:_spf.google.com ~all

Syntax Check

OK

DNS Lookup Count

6 / 10 max

Root-level mechanisms requiring DNS queries: 2.

Void Lookups

0 / 2 max

Default Policy

~all

Soft fail: Mark emails from unauthorized servers as suspicious but don't reject

All Authorized IP Addresses

Grouped by DNS record source (includes and sub-includes)

include:_spf.postgresql.org
195.192.211.73
2a02:16a8:dc:b0c::73

This record also contains:

include:_v4_spf.postgresql.org include:_v6_spf.postgresql.org include:_v4_1_spf.postgresql.org include:_v6_1_spf.postgresql.org
include:_v4_spf.postgresql.org
217.196.149.56
35.162.239.149
72.32.157.211
72.32.157.212
72.32.157.227
72.32.157.229
72.32.157.248
87.238.57.229
include:_v6_spf.postgresql.org
2001:4800:3e1:1::211
2001:4800:3e1:1::212
2001:4800:3e1:1::227
2001:4800:3e1:1::229
2001:4800:3e1:1::248
2600:1f14:aa3:2401:72a5:4c9:e73d:b2f6
2a02:16a8:dc51::56
2a02:c0:301:0:ffff::29
include:_v4_1_spf.postgresql.org
217.196.149.52
72.32.157.243
87.238.57.231
include:_v6_1_spf.postgresql.org
2001:4800:3e1:1::243
2a02:16a8:dc51::52
2a02:c0:301:0:ffff::31
include:_spf.google.com | Google
74.125.0.0/16
209.85.128.0/17
2001:4860:4000::/36
2404:6800:4000::/36
2607:f8b0:4000::/36
2800:3f0:4000::/36
2a00:1450:4000::/36
2c0f:fb50:4000::/36

DNS Lookup Details

1
include:
_spf.postgresql.org
Valid

SPF record found

Lookup cost: 4
Included by postgressummit.us

TXT Record

v=spf1 include:_v4_spf.postgresql.org include:_v6_spf.postgresql.org include:_v4_1_spf.postgresql.org include:_v6_1_spf.postgresql.org ip4:195.192.211.73 ip6:2a02:16a8:dc:b0c::73 ?all

Processed recursively per RFC 7208

2
include:
_v4_spf.postgresql.org
Valid

SPF record found

Lookup cost: 0
Included by _spf.postgresql.org

TXT Record

v=spf1 ip4:217.196.149.56 ip4:35.162.239.149 ip4:72.32.157.211 ip4:72.32.157.212 ip4:72.32.157.227 ip4:72.32.157.229 ip4:72.32.157.248 ip4:87.238.57.229 ?all

Processed recursively per RFC 7208

3
include:
_v6_spf.postgresql.org
Valid

SPF record found

Lookup cost: 0
Included by _spf.postgresql.org

TXT Record

v=spf1 ip6:2001:4800:3e1:1::211 ip6:2001:4800:3e1:1::212 ip6:2001:4800:3e1:1::227 ip6:2001:4800:3e1:1::229 ip6:2001:4800:3e1:1::248 ip6:2600:1f14:aa3:2401:72a5:4c9:e73d:b2f6 ip6:2a02:16a8:dc51::56 ip6:2a02:c0:301:0:ffff::29 ?all

Processed recursively per RFC 7208

4
include:
_v4_1_spf.postgresql.org
Valid

SPF record found

Lookup cost: 0
Included by _spf.postgresql.org

TXT Record

v=spf1 ip4:217.196.149.52 ip4:72.32.157.243 ip4:87.238.57.231 ?all

Processed recursively per RFC 7208

5
include:
_v6_1_spf.postgresql.org
Valid

SPF record found

Lookup cost: 0
Included by _spf.postgresql.org

TXT Record

v=spf1 ip6:2001:4800:3e1:1::243 ip6:2a02:16a8:dc51::52 ip6:2a02:c0:301:0:ffff::31 ?all

Processed recursively per RFC 7208

6
include:
_spf.google.com | Google
Valid

SPF record found

Lookup cost: 0
Included by postgressummit.us

TXT Record

v=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 ip6:2800:3f0:4000::/36 ip6:2a00:1450:4000::/36 ip6:2c0f:fb50:4000::/36 ~all

Processed recursively per RFC 7208

0

TLS Security

0 / 10 points

Score Breakdown

TLS-RPT record configured (optional)
0 / 5
MTA-STS policy configured (optional)
0 / 5

TLS-RPT (Reporting)

TLS-RPT Not Configured

Publish a TXT record at _smtp._tls.postgressummit.us with v=TLSRPTv1 and reporting URI (rua=).

MTA-STS (Policy)

MTA-STS Not Configured

Publish a TXT record at _mta-sts.postgressummit.us with v=STSv1 and policy ID (id=).

Know when your DNS records change

The check you just ran shows your current configuration. But DNS records change, sometimes without you knowing. A well-meaning IT change, a third-party provider update, or an unauthorized modification can break your email delivery overnight.

Configuration Drift

IT changes that accidentally break authentication

Provider Updates

Third-party services changing their SPF includes

Unauthorized Changes

Attackers modifying records to send as you

DMARCTrust monitors your DNS records continuously. When something changes, you get an email alert with exactly what changed and why it matters. No more surprises when customers complain their emails bounced.

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Same Policy

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Showing domains checked by our users. All data is from public DNS records.

About This Checker

What we check

We analyze your domain's email authentication: DMARC policy and alignment, SPF record and includes, and BIMI logo/CV when present.

Why it matters

Healthy authentication improves delivery and blocks spoofing. Major inbox providers increasingly require DMARC and robust SPF/DKIM practices for senders.

Included features

  • DMARC syntax, policy, and reporting validation
  • SPF record evaluation and include analysis
  • DKIM/SPF alignment interpretation
  • BIMI record and VMC detection
  • Clear setup and remediation guidance

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