Mastodawn

Top malicious IPs observed on 2026-05-07

141.98.10.42 (Lithuania) https://sh4meful.com/ip/141.98.10.42
50.127.181.82 (United States) https://sh4meful.com/ip/50.127.181.82
147.78.181.187 (Russia) https://sh4meful.com/ip/147.78.181.187
20.61.126.208 (The Netherlands) https://sh4meful.com/ip/20.61.126.208
89.239.126.195 (Poland) https://sh4meful.com/ip/89.239.126.195
62.60.130.142 (Iran) https://sh4meful.com/ip/62.60.130.142
188.187.110.66 (Russia) https://sh4meful.com/ip/188.187.110.66

#infosec #spam #spoof #emailsecurity

141.98.10.42 Intelligence Report — DMARC Spoofing Activity & Network Analysis | Sh4meful

Intelligence report on 141.98.10.42: DMARC spoofing activity, network ownership, geolocation data. Track email security threats and investigate suspicious IPs. Free threat intelligence.

Meysam 17h ago

your domain health in one check

the domain health check runs all 9 email authentication protocols against your domain in a single query

- SPF syntax
- DMARC policy
- DKIM selectors
- MTA-STS mode
- TLS-RPT reporting
- BIMI record
- DANE/TLSA
- and ARC chain validation

run the health check

one domain, 9 protocols, 30 seconds

no account required

https://dmarcguard.io/tools/domain-health-check/

#DMARC #EmailSecurity #EmailAuthentication #DomainHealth

Domain Email Health Check | DMARCguard

Run a comprehensive email authentication audit across all protocols. Get a weighted security score and actionable recommendations -- entirely from your browser.

DMARCguard

Shameful 1d ago

Top malicious IPs observed on 2026-05-05

158.94.210.93 (The Netherlands) https://sh4meful.com/ip/158.94.210.93
141.98.10.42 (Lithuania) https://sh4meful.com/ip/141.98.10.42

#infosec #spam #spoof #emailsecurity

158.94.210.93 Intelligence Report — DMARC Spoofing Activity & Network Analysis | Sh4meful

Intelligence report on 158.94.210.93: DMARC spoofing activity, network ownership, geolocation data. Track email security threats and investigate suspicious IPs. Free threat intelligence.

Security Land 1d ago

Proton is stepping into the future of cybersecurity with the introduction of post-quantum encryption in Proton Mail. The new feature helps users safeguard their emails today against the potential threats of tomorrow’s quantum computing era.

#SecurityLand #Proton #News #ProtonMail #PostQuantum #Encryption #EmailSecurity

Proton Mail Introduces Post-Quantum Encryption

Proton Mail now offers post-quantum encryption as an optional feature, helping users protect emails against future quantum computing threats.

Security Land | Decoding the Cyber Threat Landscape

Meysam 1d ago

why I built a 9-protocol platform!?

when I started building DMARCguard, every competitor I evaluated covered 5-6 protocols.

DMARC, SPF, DKIM... the basics.

but email authentication is a system of 9 interlocking protocols, and monitoring only half of them gives you a partial picture.

so I built coverage for all 9: DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, ARC, DANE, and ARF.

that decision cost me speed but bought correctness.

https://dmarcguard.io/compare/

#DMARC #EmailSecurity

Compare DMARC Monitoring Tools | DMARCguard

Side-by-side pricing and feature comparisons of DMARCguard vs Valimail, EasyDMARC, dmarcian, and PowerDMARC. See which DMARC tool fits your needs.

DMARCguard

Shameful 2d ago

Top malicious IPs observed on 2026-05-04

#infosec #spam #spoof #emailsecurity

31.149.213.145 Intelligence Report — DMARC Spoofing Activity & Network Analysis | Sh4meful

Intelligence report on 31.149.213.145: DMARC spoofing activity, network ownership, geolocation data. Track email security threats and investigate suspicious IPs. Free threat intelligence.

Analyst207 2d ago

Phishing Attacks Exploit Amazon SES to Evade Detection

Kaspersky researchers have uncovered a surge in phishing attacks that cleverly exploit Amazon's trusted email service to evade detection. By using valid Amazon SES credentials, attackers can send convincing phishing messages that slip past standard security checks.

https://osintsights.com/phishing-attacks-exploit-amazon-ses-to-evade-detection?utm_source=mastodon&utm_medium=social

#PhishingAttacks #AmazonSes #CloudServices #EmailSecurity #ThreatActors

Phishing Attacks Exploit Amazon SES to Evade Detection

Learn how phishing attacks exploit Amazon SES to evade detection and protect your organization - discover the latest tactics used by attackers now.

OSINTSights

Analyst207 2d ago

Attackers Exploit Amazon SES to Bypass Email Security in Phishing Campaigns

Phishing campaigns are now using Amazon's Simple Email Service to make malicious messages look legit, bypassing standard email security checks and putting victims at risk of revealing sensitive data. By exploiting Amazon SES's trusted reputation and authentication features, attackers are making it harder to spot phishing emails.

https://osintsights.com/attackers-exploit-amazon-ses-to-bypass-email-security-in-phishing-campaigns?utm_source=mastodon&utm_medium=social

#Phishing #AmazonSes #EmailSecurity #CloudServices #ThreatActors

Attackers Exploit Amazon SES to Bypass Email Security in Phishing Campaigns

Learn how attackers exploit Amazon SES to bypass email security in phishing campaigns and protect your organization from these threats today with expert insights.

OSINTSights

Meysam 3d ago

Microsoft Outlook enforcement is here

Microsoft started enforcing DMARC for outlook.com senders in May 2025

if you're still at p=none for domains sending to Outlook, Hotmail, or live.com recipients, your deliverability is already degrading

combined with Google/Yahoo rejecting non-compliant bulk senders since November 2025, the three largest consumer mailbox providers now enforce authentication

https://dmarcguard.io/tools/dmarc-checker/

#DMARC #EmailSecurity #MicrosoftOutlook