postfix-ubuntu.readme

postfix-ubuntu.readme

https://www.linuxbabe.com/mail-server/setup-basic-postfix-mail-sever-ubuntu

# Check host name

hostname -f

if host not contain in resutl

sudo hostnamectl set-hostname mail.demo.local

sudo vim /etc/hosts

127.0.1.1       mail.demo.local

# check postfix

sudo netstat -lnpt

dpkg -L postfix | grep /usr/sbin/

postconf mail_spool_directory

sudo tail -f /var/log/mail.log

# Advance

postconf | grep message_size_limit

sudo postconf -e message_size_limit=52428800

# change myhostname

sudo vim /etc/postfix/main.cf

# change email alias

sudo vim /etc/aliases

sudo newaliases