DeveloperLoad - DeveloperLoad

@web.de and @gmx.de respond with "550-Requested action not taken: mailbox unavailable 550 invalid DNS MX or A/AAAA resource record"

I'm running a webserver with Debian 10 (the provider is 1blu) on it. To send emails by php sendmail I installed postfix and configured it according to the descr

Python create a sublist of list from a list

Here is my question: I have a list in python that looks like this: list = [["a", "b", [1,2]], ["a", "C", [4,1,3]], ["e", "f", [1,7]]] And I would like to get a

What does the Array method `reduce` do?

I found a very useful function reduce, and I'm using it, but I'm not sure if I understand it properly. Can anyone help me to understand this function? Example:

Call to API from Angular in Nginx does not resolve Docker service name

I have an Angular app running in a NginX Docker container. The Angular app can make a REST call to another container (Spring Boot API Docker) using localhost as

How to make a post call with Django where your models are many to many?

I am trying to understand how I should be structuring my post call when I want to do a many to many relationship. class School(models.Model): name

Lit: nested template doesn't render

I have a really simple template and a simple nested template. Unfortunately, my nested template doesn't render anything. I followed the example defined at: http

React-native-google-cast Button seems inactive and is not clickable

I have implemented react-native-goggle-cast on my project. I can see the button. However, the button is not clickable. Nothing comes out of it after clicking. W