Sendmail: Do I need it running?

[Ekrem]

Hi people,

I'm using FreeBSD on my standalone desktop PC. I use dialup for the
internet and use Evolution as the email client, but the following 2
processes always running;

sendmail: accepting connections (sendmail)
sendmail: Queue runner at 00:30:00 for /var/spool/clientmqueue (sendmail)

Do they need to be running for things like daily/weekly cron jobs that
send emails to root, or for any other purpose?

Thanks.