After installing Postfix, why doesn't it pop up the configuration interface

Question

When I first time install Postfix, after install, an interface would pop up and ask me which type to choose from; something like:

• Internet:
• Satellite:
• Smarthost:
• Local only:

Today I removed Postfix using:

sudo apt-get remove postfix

And I tried to install it again using:

sudo apt-get install postfix

After install, no interface pops up.

How can I make it show up again?

Thanks.

Answer 1

It didn't pop up the configuration screen as configuration of the package already existed.

To reconfigure the postfix package:

sudo dpkg-reconfigure postfix