Pull-Request to Issue #3

The issue #3 be resolved by using msmtp as an alternative to the mail command. This approach does not require a local Mail Transfer Agent (MTA) and can send emails via an SMTP server.

Below is the modified code that uses msmtp:

(
  echo "To: $email"
  echo "Subject: $mailsubject"
  echo "Content-Type: text/plain"
  echo
  cat $mailtext
) | msmtp $email

Steps to Implement the Solution:

Install msmtp on your system. For Debian-based distributions, you can use:
```
sudo apt-get install msmtp
```

Configure msmtp by creating or editing the configuration file ~/.msmtprc with the necessary SMTP server details:

account default
host smtp.yourserver.com
port 587
from youremail@yourdomain.com
auth on
user youremail@yourdomain.com
password yourpassword
tls on
tls_trust_file /etc/ssl/certs/ca-certificates.crt

Ensure the configuration file has the correct permissions:
```
chmod 600 ~/.msmtprc
```
Update the backup-tool.sh script with the provided code snippet.
Test the script to ensure emails are sent successfully without relying on a local MTA.

This solution ensures that the backup process can run smoothly in environments without an MTA, maintaining the reliabilityand effectiveness of your backup notifications.

psyadm / backuptools-bash

Pull-Request to Issue #3 #4

Steps to Implement the Solution: