install mailserver

add an account

hostname config

install postfix

sudo apt install postfix

stelite system

postfix config

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
~ myhostname = vm01.homelab.local
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
+ sender_canonical_maps = hash:/etc/postfix/canonical
myorigin = /etc/mailname
mydestination = localhost.$mydomain, localhost
relayhost = homelab.local
~ mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.1.X/32
mailbox_size_limit = 0
recipient_delimiter = +
~ inet_interfaces = all
~ inet_protocols = all

postfix canonical config

sudo echo '[email protected]  [email protected]' >> /etc/postfix/canonical
sudo postmap /etc/postfix/canonical
sudo systemctl reload postfix

postgrey whitelist

install logwatch

sudo apt install logwatch

logwatch config

logwatch test

 ################### Logwatch 7.5.5 (01/22/21) #################### 
        Processing Initiated: Fri Sep 20 23:12:15 2024
        Date Range Processed: yesterday
                              ( 2024-Sep-19 )
                              Period is day.
        Detail Level of Output: 10
        Type of Output/Format: mail / text
        Logfiles for Host: vm01.homelab.local
 ################################################################## 
 
 --------------------- Cron Begin ------------------------ 
 
 ...