For upgrades:
Run the command:
Always!
sed -i "s/obscure yescrypt/obscure sha512/g" /etc/pam.d/common-password
When Exim is installed:
# make sure to replace it otherwise you are not able to receive email anymore
rm -f /etc/exim4/exim4.conf.template
cp -f /usr/local/hestia/install/deb/exim/exim4.conf.4.94.template /etc/exim4/exim4.conf.template
If Proftpd is installed:
Comment out: IdentLookups in /etc/proftpd/proftpd.conf