sudo install -m 400 -o root -g root \
"$tool"/var/pub/x509/$vm_domainname/imap/crt+crl.self-signed.pem \
/etc/dovecot/$vm_domainname/imap/x509/crt+crl.self-signed.pem
sudo install -m 400 -o root -g root \
"$tool"/var/pub/x509/$vm_domainname/imap/crt+crl.self-signed.pem \
/etc/dovecot/$vm_domainname/imap/x509/crt+crl.self-signed.pem