Hi 👋 everyone! I have a problem with the setup of email alerts in Self Hosted instalation in K8S. I've tried to set up all SMTP_* ENVs in STS as they are described in docs, but the the mail alert channel still fails at test. Is there anything else what is needed to set up for sending emails from SigNoz ?

Version?

v0.76.2

What error are you getting?

image.png

In the console, can you see the api output of the

testChannel

call?

{"level":"INFO","timestamp":"2025-04-04T083911.953Z","logger":"go.signoz.io/pkg/http/middleware","caller":"middleware/logging.go:88","msg":":RECEIVED REQUEST:","client.address":"10.42.0.4:47352","user_agent.original":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36","server.address":"","server.port":"","http.request.size":10100,"http.route":"/api/v1/testChannel","http.response.status_code":500,"http.server.request.duration":2,"response.body":"{\"status\":\"error\",\"error\":{\"code\":\"unknown\",\"message\":\"establish connection to server: dial tcp [:1]25: connect: connection refused\"}}"}

interesting, have you set up the SMTP host correctly?

SMTP server has IP 10.10.1.2

OK, I see. will change the ENVs to new names (SIGNOZ_ALERTMANAGER_SIGNOZ_GLOBAL_SMTP__*) and will test it again.

It seems our helm charts are outdated 🥲.

SMTP_ ENVs are defined by helm