blink if you have mail

checkmail.bash

#!/bin/bash

function f_curl {
  curl -s -X "SEARCH UNSEEN" -k -u $1:$2 --url $3
}

f_curl $username $password imaps://$host/INBOX | awk '{if (NF > 2) system("/usr/local/bin/blink1-tool -q --rgb=#FF0000 --blink 3");}'
f_curl $username $password imaps://$host/INBOX | awk -v host="$host" -F '{print host ":\t", NF - 2}'