Sysadmins (and lesser mortals) use cron to schedule regular jobs on servers for all sorts of tasks including backups. Since it can be a pain to log into each server to ensure that these scheduled jobs are running correctly days, weeks or even months after the jobs were first created, you can opt to receive notifications of the success or failure of these jobs by email. In order to send emails, cron relies on sendmail....
Everyone needs email… itʼs what enables us to receive communications from e-commerce sites and other internet services. So when faced with the challenge of creating a personal email address, where do most people turn? Invariably, they choose GMail. On the surface GMail presents a very attractive solution for email. Itʼs pretty feature rich, it works reliably (except in China!) and itʼs normally free for personal use. This is fine as long as you realise that you are the commodity when using free services like this....