Email Authentication Check

loungenerd.com

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 1 hour ago

0 out of 110
Very Good

Domain Health Score

Your domain has strong email authentication. A few improvements can get you to a perfect score.

SPF
Sender Policy Framework
30 / 30
DMARC
Domain-based Message Authentication
50 / 50
BIMI
Brand Indicators for Message Identification
15 / 20
TLS
TLS Security (MTA-STS & TLS-RPT)
0 / 10
0

DMARC Check Results

50 / 50 points

Score Breakdown

DMARC record published
+10
Syntax valid
+5
Reject policy (maximum protection)
+20
Aggregate reporting (rua) configured and verified
+10
Forensic reporting (ruf) configured
+5

DMARC check passed: properly configured

DMARC record is valid and configured correctly.

_dmarc.loungenerd.com TXT Entry:

v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;

Policy (p)

reject

DKIM Alignment (adkim)

Relaxed (default)

SPF Alignment (aspf)

Relaxed (default)

Reporting (RUA/RUF)

Aggregate Reports

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

Verification successful

Learn more about aggregate reports →

Forensic Reports

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

Verification successful

Learn more about forensic reports →

Add Our Monitoring System

You can add our monitoring system alongside your existing setup. DMARC supports multiple mailto: addresses, giving you additional visibility and backup reporting.

  • Automated DMARC report processing every 5 minutes
  • Track all sending sources and authentication results
  • Email alerts when your DNS records change
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0

BIMI Check (default selector)

15 / 20 points

Score Breakdown

BIMI record published
+5
BIMI record valid
+5
Logo URL accessible and valid SVG
+5
No VMC certificate configured (optional)
0 / 5

BIMI Record Found and Looks Good

Current BIMI Entry:

v=BIMI1; l=https://loungenerd.com/images/circle_bimi.svg; a=; avp=brand;

Logo URL

https://loungenerd.com/images/circle_bimi.svg

image/svg+xml

Note: We do not parse SVG content for safety.

Mark Certificate

No certificate URL provided (a=). Optional when using self-asserted logos.

0

SPF Record Check Results

30 / 30 points

Score Breakdown

SPF record published
+10
Syntax valid
+5
Hard fail policy (-all)
+10
No configuration warnings
+5

SPF record is valid.

loungenerd.com TXT SPF Entry:

v=spf1 include:spf.messagingengine.com include:mailgun.org -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

Fail: Reject emails from unauthorized servers (recommended for production)

All Authorized IP Addresses

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

include:spf.messagingengine.com | FastMail
103.168.172.128/27
202.12.124.128/27
include:_spf1.mailgun.org | Mailgun
209.61.151.0/24
166.78.68.0/22
198.61.254.0/23
192.237.158.0/23
23.253.182.0/23
104.130.96.0/28
146.20.113.0/24
146.20.191.0/24
159.135.224.0/20
69.72.32.0/20
include:_spf2.mailgun.org | Mailgun
104.130.122.0/23
146.20.112.0/26
161.38.192.0/20
143.55.224.0/21
143.55.232.0/22
159.112.240.0/20
198.244.48.0/20
204.220.168.0/21
204.220.176.0/20
include:_spf.eu.mailgun.org | Mailgun
141.193.32.0/23
159.135.140.80/29
159.135.132.128/25
161.38.204.0/22
87.253.232.0/21
185.189.236.0/22
185.211.120.0/22
185.250.236.0/22
143.55.236.0/22
198.244.60.0/22
204.220.160.0/21

DNS Lookup Details

1
include:
spf.messagingengine.com | FastMail
Valid

SPF record found

Lookup cost: 0
Included by loungenerd.com

TXT Record

v=spf1 ip4:103.168.172.128/27 ip4:202.12.124.128/27 -all

Processed recursively per RFC 7208

2
include:
mailgun.org | Mailgun
Valid

SPF record found

Lookup cost: 2
Included by loungenerd.com

TXT Record

v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all

Processed recursively per RFC 7208

3
include:
_spf.mailgun.org | Mailgun
Valid

SPF record found

Lookup cost: 2
Included by mailgun.org

TXT Record

v=spf1 include:_spf1.mailgun.org include:_spf2.mailgun.org ~all

Processed recursively per RFC 7208

4
include:
_spf1.mailgun.org | Mailgun
Valid

SPF record found

Lookup cost: 0
Included by _spf.mailgun.org

TXT Record

v=spf1 ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ~all

Processed recursively per RFC 7208

5
include:
_spf2.mailgun.org | Mailgun
Valid

SPF record found

Lookup cost: 0
Included by _spf.mailgun.org

TXT Record

v=spf1 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ~all

Processed recursively per RFC 7208

6
include:
_spf.eu.mailgun.org | Mailgun
Valid

SPF record found

Lookup cost: 0
Included by mailgun.org

TXT Record

v=spf1 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/21 ~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.loungenerd.com with v=TLSRPTv1 and reporting URI (rua=).

MTA-STS (Policy)

MTA-STS Not Configured

Publish a TXT record at _mta-sts.loungenerd.com 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.

Start Monitoring

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Reject policy + valid SPF

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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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