Welcome to our blog with miscellaneous stuff we needed a place for.

Please visit our About page for our disclaimer before reading on.

The Dabblers đŸ™‚


Sendmail/smart host – this time with Microsoft Azure and SendGrid.com

Hi, As mentioned here, my internet service provider (ISP, Eniig) has announced that they will not provide a SMTP relay host (outgoing Simple Mail Transfer Protocol relay), and on top of that they earlier stated that they will not even setup reverse DNS on my fixed IP. They recommended smtp.dk and it has worked flawlessly …

“External Azure Active Directory” users and Single-Sign-On in Dynamics 365 Business Central

If you are setting up Single-Sign-On (SSO) for Dynamics 365 Business Central (DBC) and you are only able to authenticate users local to the Azure Active Directory (i.e. non Guest or “External Azure Active Directory” users), then you might have stumbled across the same error as me. The error manifests itself by allowing you to …

Arduino IDE v1.8.9, esp32 v1.0.2 and ulptool v2.3.0

Are you messing with ultra low power esp32 code and have tried to setup the ulptool example from duff2013s GitHub in Arduino IDE v1.8.9 with Espressif Systems esp32 v1.0.2? Maybe you got a lot of strange compile errors like these? Traceback (most recent call last): File “C:\Users\<your user name>\AppData\Local\Arduino15\packages\esp32\tools\ulptool\src/esp32ulp_build_recipe.py”, line 506, in main(sys.argv[1:]) File “C:\Users\ …


We are just friends dabbling with electronics, software and …. stuff, and need a place to document the knowledge we obtain.
So we decided that if we share our questionable knowledge on this blog, others might find it useful or simply blow themselves up because we got it totally wrong đŸ™‚

Most information on this blog is probably stolen from somewhere else (sorry), misunderstood or simply plain wrong – so if you use it, it is your own risk and expense.