VariableSMTP_HOST
DescriptionSMTP_HOST Environment Variable

Let Humio send emails using an SMTP server. ONLY put a password here if you also enable starttls. Otherwise you will expose your password. Below is an example excerpt from the Humio configuration file for a server using GMail:

ini files
SMTP_HOST=smtp.gmail.com
SMTP_PORT=587
SMTP_SENDER_ADDRESS=you@domain.com
SMTP_USE_STARTTLS=true
SMTP_USERNAME=you@domain.com
SMTP_PASSWORD=your-secret-password

Alternatively, here's an example excerpt using a local clear-text, non-authenticated SMTP server:

ini files
SMTP_HOST=localhost
SMTP_PORT=25
SMTP_SENDER_ADDRESS=you@domain.com
SMTP_USE_STARTTLS=false