The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for September 27th, 2024

Attempting to stop Microsoft users sending ‘reactions’ to email from me by adding a postfix header

Posted by jpluimers on 2024/09/27

If you do not want Outlook kinds of clients spamming you, then add this header to your email messages above the Content-Type header (see [Wayback/Archive] The Message Content-Type in MIME)

x-ms-reactions: disallow

[Wayback/Archive] Attempting to stop Microsoft users sending ‘reactions’ to email from me by adding a postfix header

Via [Wayback/Archive] Kris: “x-ms-reactions: disallow http…” – chaos.social

x-ms-reactions: disallow

neilzone.co.uk/2024/07/attempt

Eine kleine Mailserver Config verhindert, daß Outlook Volldeppen meine Mailbox mit Likes spammen.

Sehr gut.

--jeroen

Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, Office, Outlook, postfix, Power User, SMTP | Leave a Comment »

What’s inside the QR code menu at this cafe? – by peabee

Posted by jpluimers on 2024/09/27

This is why I do not trust ordering via QR-code: you never know how good (or usually bad, often even non-existent) their security is.

[Wayback/Archive] What’s inside the QR code menu at this cafe? – by peabee is a really bad example about Google backed DotPe: they have zero-auth and by now have rated limited API access by IP address.

…

I went to a cafe near my home. I sat down and scanned the QR code on the table. It took me to a website displaying the cafe’s menu. It asked me for my name and Whatsapp mobile number. I entered the details and placed the order.

In 5 mins my order arrived at the table. There was no OTP verification, and no one came to confirm the order. Is this what the peak ordering experience looks like?

It was a slow workday, and I thought I might as well open this QR code website on my laptop and have a quick look under the hood. Maybe I should’ve just made my own coffee and stayed home because I didn’t realize I was opening a can of worms.

…

This kind of zero-auth is not infrequent: the Panels API and CDN were wide-open too: [Wayback/Archive] https://storage.googleapis.com/panels-api/data/20240916/media-1a-i-p~s

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Posted in Authentication, Development, Infosec (Information Security), LifeHacker, Phishing, Power User, Security, Software Development | Tagged: | Leave a Comment »

Some links on repairing the buttons of remote controls that use graphite to short areas on printed board circuits

Posted by jpluimers on 2024/09/27

Most are Dutch as I started with [Wayback/Archive] drukknop afstandsbediening grafiet – Google Search.

Summary:

  • first give a good clean
  • avoid acetone and super-glue
  • be careful with too much other solvent (ethanol or isopropyl-alcohol)
  • pencils often do not contain enough graphite any more
  • aluminium foil or conductive paint work fine (be sure to let the paint for at least 24 hours)

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Posted in LifeHacker, Power User | Leave a Comment »