No email from fail2ban

[Jan Jansen]

Hello,

Fail2ban is installed by default on the latest stable version. I would like to make fail2ban send emails when needed. But the fail2ban.log shows that the mails are returned (7f00).

My fail2ban destemail address is a gmail address (same address for email noticaties from Domoticz). Fail2ban uses MTA sendmail (I also tried mta = mail in jail.local).

Sendmail is not installed by default on the latest stable version of Domoticz. Domoticz can send emails (in my case using a second gmail adress). Is it possible fail2ban to send emails via the same route?

I hope somebody can help.

Thanks in advance!