fix: setup script

setup.sh

@@ -371,4 +371,4 @@ sudo mkdir -p ${PIHOLE_DNSMASQ_VOLUME_PATH}
 sudo mkdir -p ${LETSENCRYPT_VOLUME_PATH}
 
 echo "Copying getmail confs"
-cp images/email/getmail/getmailrc-* ${MAIL_DATA_VOLUME_PATH}/getmail/
+cp images/email/getmail/getmailrc-* ${MAIL_DATA_VOLUME_PATH}/getmail/ 2>/dev/null