Is it normal "Postfix was not set up."?

Question

linux

I install a mail server on Debian 8.5 according to this guide. After command

aptitude install dovecot-core dovecot-imapd dovecot-lmtpd dovecot-mysql dovecot-managesieved dovecot-pop3d dovecot-sieve dovecot-postfix

I receive

Command output 1

https://pastebin.com/Wpziy3ee

Noticed it right away

Couldn't find any package whose name or description matched "dovecot-postfix"

I install postfix with this command
apt-get install postfix
I get

Command 2 output

https://pastebin.com/fMki6h32

This is very embarrassing. Is
Postfix was not set up.
this normal?
I am using SSH as root.
Ps I've been trying to set up a mail server for three days now. Nothing happens (((... If anyone can, then help with some simple material ...

Answer 1

It’s a pity that your hamstrings immediately shook from this, because the most interesting things are written there

Postfix was not set up. Start with
cp /usr/share/postfix/main.cf.debian /etc/postfix/main.cf
. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).