Freddie Leeman (@freddieleeman) 's Twitter Profile
Freddie Leeman

@freddieleeman

Code cruncher by day, smart home alchemist by night, fiercely guarding the realms of privacy and security.

ID: 74408506

linkhttps://www.freddieleeman.nl calendar_today15-09-2009 09:33:38

2,2K Tweet

421 Followers

66 Following

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Kinderopvang KidsLodge verzorgt tijdens de avondvierdaagse de meeste straatvervuiling door reclamestickers uit te delen 🤦‍♂️. Gaan jullie de route straks ook opruimen Kids Lodge ?

Kinderopvang KidsLodge verzorgt tijdens de avondvierdaagse de meeste straatvervuiling door reclamestickers uit te delen 🤦‍♂️. Gaan jullie de route straks ook opruimen <a href="/KidsLodgeHouten/">Kids Lodge</a> ?
Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Are you using DANE and MTA-STS protocols to secure your inbound emails? An issue with Microsoft's TLS-RPT implementation means that only the first aggregate report URI (rua) address receives reports. uriports.com/blog/microsoft…

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Nearly 10,000 of the top million domains have an MX record hostname containing one or more underscore characters. Is that allowed?

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Microsoft’s Use of the envelope_to Field in DMARC Reports: Privacy Concern or Useful Feature? linkedin.com/pulse/microsof… via LinkedIn

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Having trouble setting up Content Security Policy (CSP) reporting because of server restrictions? Our latest tool lets you enable CSP reporting without modifying HTTP response headers, complete with support for sampling and filtering. uriports.com/blog/javascrip…

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Fellow email nerds, quick question for you—without peeking at the RFC! What types of reports does DMARC support? This question is taken from learndmarc.com/quiz. #DMARC #email #authentication #deliverability

Fellow email nerds, quick question for you—without peeking at the RFC! What types of reports does DMARC support? This question is taken from learndmarc.com/quiz. #DMARC #email #authentication #deliverability
Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Since December 11th, Comcast DMARC aggregate reports have shown irregularities. If you're a system administrator noticing a dip in reports, rest assured this is not an issue on your end. The problem lies with Comcast’s reporting system, which we hope is being addressed promptly.

Since December 11th, <a href="/comcast/">Comcast</a> DMARC aggregate reports have shown irregularities. If you're a system administrator noticing a dip in reports, rest assured this is not an issue on your end. The problem lies with Comcast’s reporting system, which we hope is being addressed promptly.
Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

We’ve enhanced our BIMI validator to include checks for Entrust certificates issued after November 15, 2024. These certificates are no longer trusted by Apple, meaning their recipients (iCloud.com, Mac Steve.com, and Maine.com.com) may stop seeing the verified logo. uriports.com/tools?method=b…

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

I’ve just published an updated blog post on BIMI adoption! Key highlights: 28% increase in overall BIMI records since May 2024. 64% surge in domains with BIMI configuration errors. Over 8% of VMC certificates are expired, and 10% are invalid. uriports.com/blog/bimi-2025…

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

We made something cool today. A tool to help you verify your Web Key Directory (WKD) configuration. For anyone using #OpenPGP, #WKD makes your key discoverable using only your email address by placing a binary key in the .well-known folder. WebKeyDirectory.com

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Out of the top million domains, just 303 have implemented a Web Key Directory (WKD) for publishing OpenPGP keys. If you publish PGP keys via WKD and want to verify your setup, or want to start using WKD, you can use our new, free service at WebKeyDirectory.com.

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Chrome now supports potential-permissions-policy-violation Reports! With the 134 update, Chrome can now generate potential-permissions-policy-violation reports, helping developers catch Permissions Policy conflicts before they happen. uriports.com/blog/potential…

Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

Google DMARC reports are back! After going quiet since April 13, Google has resumed sending DMARC aggregate reports as of 19:15 UTC today. #DMARC #EmailSecurity #Google

Google DMARC reports are back! After going quiet since April 13, Google has resumed sending DMARC aggregate reports as of 19:15 UTC today. 

#DMARC #EmailSecurity #Google
Freddie Leeman (@freddieleeman) 's Twitter Profile Photo

DMARCbis replaces the PSL with DNS Tree Walk: What's the Difference? uriports.com/blog/dmarcbis-… #DMARC #DMARCbis #DNS

DMARCbis replaces the PSL with DNS Tree Walk: What's the Difference? uriports.com/blog/dmarcbis-… #DMARC #DMARCbis #DNS
URIports (@uriports) 's Twitter Profile Photo

The new BIMI lps= tag, also known as the local-part selector, has been added to the BIMI specification. It allows domain owners to define different brand indicators based on the sender address (for example noreply@, support@, marketing@). uriports.com/blog/bimi-lps-…