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KEY=$1
EMAIL=$2
MD5=`echo -n "$KEY $EMAIL" | md5sum| awk '{print $1}'`
curl -o /dev/null -s -sw "%{http_code}" -G --user "api:$KEY" -G https://api.mailgun.net/v3/address/validate --data-urlencode address="$EMAIL" > /tmp/$MD5
RESPONSE_CODE=`cat /tmp/$MD5`
if [ $RESPONSE_CODE -eq 200 ]; then
        echo "OK: $RESPONSE_CODE"  
        exit 0
else
        echo "FAILED: $RESPONSE_CODE"
        exit 2
fi