Swaks for Zabbix (use SMTP and TLS)

sendmail.sh

#!/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

HOST=smtp.yandex.ru
USERNAME=username@yandex.ru
PASSWORD=password
PORT=465

TO=$1
SUBJECT=$2
BODY=$3

SWAKS=`which swaks`

$SWAKS --to $TO --from $USERNAME --h-From: "'Zabbix' <$USERNAME>" --body "$BODY" --h-Subject $SUBJECT \
  --server $HOST --port $PORT --protocol SSMTP \
  --auth LOGIN --auth-user $USERNAME --auth-password $PASSWORD