Linux: Annoying Postfix Install Popup

By Xah Lee. Date:

When installing postfix, it does a annoying popup. Here's a screenshot:

postfix config screenshot 2013-05-20 1 postfix config screenshot 2013-05-20 2
Linux postfix installation popup screenshot.

Programs shouldn't do this, because it interrupts installation.

For example, this happened when i'm installing emacs dependencies by sudo apt-get build-dep emacs23. [see Building Emacs on Linux — a Guide] I wasn't even consciously installing postfix. You go for a coffee, expecting things will be done when you come back, but instead, you get this popup stuck on your screen.

Another software that does this is MySQL, prompting you for a root password.

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