mail's attachmentfile to Slack

Email's domain section and const domain must be equal.

Email's local section and Slack Display name must be equal.

usage

• Put config file(config.toml) to binary exist dir.
• /path/to/binary < raw_email_data

docker

• docker build -t scan_mail -f docker/Dockerfile .
• docker run --rm -d -e DOMAIN= -e TOKEN= -e USER=<user:password[,user:password,...] for smtp auth> scan_mail
• set mailer smtpauth user@domain, password and send attached email