All steps to setup webmail server roundcubemail-1.2.3 from ubuntu 16.04

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installation Ubuntu 16.04 with LAMP server, MAIL server, Open SSH server and standard system utilities option checked
when install Ubuntu server,
hostname: jimmypan.dlinkddns.com
write down the sql server root password
mail configuration: Internet Site
system mail name: jimmypan.dlinkddns.com
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sudo su
ufw disable
apt-get update
apt-get upgrade –assume-yes
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I have finished the upgrade, so I start from here…
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mysql -u root -p

create database data;
CREATE USER ‘ggyy’@’localhost’ IDENTIFIED BY ‘AsWe34_-tYu-_pxXccD’;
GRANT ALL PRIVILEGES ON *.* TO ‘ggyy’@’localhost’ WITH GRANT OPTION;
FLUSH PRIVILEGES;
exit
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nano /etc/dovecot/conf.d/10-mail.conf

## the location of the mailbox is specified in ‘mbox’ format ##
mail_location = mbox:~/mail:INBOX=/var/mail/%u

## dovecot is granted necessary permission to read/write user mailboxes ##
mail_privileged_group = mail

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cd /tmp && wget https://github.com/roundcube/roundcubemail/releases/download/1.2.3/roundcubemail-1.2.3-complete.tar.gz
tar -xzvf roundcubemail-1.2.3-complete.tar.gz -C /var/www/html
mv /var/www/html/roundcubemail-1.2.3/ /var/www/html/webmail
chown -R www-data:www-data /var/www/html/webmail/*
chown -R www-data:www-data /var/www/html/webmail/

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apt-get install –assume-yes php-dom php-mbstring php-xml php-mysql php-intl php-ldap

nano /etc/php/7.0/apache2/php.ini

date.timezone = “Asia/Taipei”

service apache2 restart

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http://jimmypan.dlinkddns.com/webmail/installer

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change default e-mail domain in roundcube

nano /var/www/html/webmail/config/config.inc.php

$config[‘mail_domain’] = ‘%n’;

use %d if you got one extra default e-mail hostname

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add test user (-m means create user with his own home directory)
useradd -m test123
passwd test123

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init 6

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http://jimmypan.dlinkddns.com/webmail

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# remove installer folder

rm -rf /var/www/html/webmail/installer

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I am not a Linux expert only a beginner. Please correct me if my command or anything is wrong. Thank you.
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Change settings for mail size.
/etc/php/7.0/apache2

php.ini

upload_max_filesize = 100M //default setting 2M
post_max_size = 100M //default setting 8M
memory_limit = 512M //default setting 128M
max_execution_time = 300 //default setting 30
max_input_time = 600 //default setting 60

sudo postconf -e mailbox_size_limit=0
sudo postconf -e message_size_limit=0
sudo /etc/init.d/postfix restart

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to add ftp server

sudo dpkg –configure -a
sudo apt-get install vsftpd
sudo nano /etc/vsftpd.conf
write_enable=YES
#limit user in their home
chroot_local_user=YES
allow_writeable_chroot=YES
sudo /etc/init.d/vsftpd restart

sudo nano /etc/shells
# add this line in the end of the file
/usr/sbin/nologin

source

by lancard86

linux smtp server