E-mail alerting

Community Containers
1

Hi there,

We are currently working on our first Greenbone OpenVas installation.
We have successfully created a set-up on Ubuntu 22.04 making use of the container images.
All seems to be working well however we cannot get e-mail alerting to work.
I have tried many different options from the documentation, at the moment it fails with the following message:
sendmail: TLS certificate verification failed: The certificate is NOT trusted. The certificate issuer is unknown

I have tried placing the following in /etc/msmtprc
tls_trust_file /etc/ssl/certs/ca-certificates.crt
That does not seems to be picked-up when I check the file from within the container.

My question is, what is the right place to add this line?
And is there a env var that I can use instead in the Docker compose file?

Thank you in advance!

Regards,

Mervin

2

Here are the instructions for setting up email.

However, it sounds like your issue is with msmtp, not Greenbone containers. I suggest you to lookup the msmtp documentation or support forum for guidance.

2 Likes
3

Thank you for your answer.
We managed to got it working by adding the following to the docker-compose.yml file, under gvmd:

 extra_hosts:
  - "host.docker.internal:host-gateway"
environment:
  - MTA_HOST=host.docker.internal
  - MTA_PORT=25
  - MTA_TLS=off
  - MTA_STARTTLS=off
  - MTA_FROM=sender@domain.nl
  - MTA_AUTH=off

We’re using Postfix on the host with the docker network added to my_networks.
We can afford to have no authentication on the MTA host because the Postfix instance on the host has a relay added to a secure Postfix server.

sendmail is a symlink for msmtp.