How to pass an X-Header to Graylogs SMTP configuration?

[Andy]

I have Graylog running in Docker. I know there are several GRAYLOG_TRANSPORT_EMAIL_ environment variables.

What I’m looking for is a way to add a custom SMTP header.

I’m using sendgrid.com to send my emails, and they allow adding categories to the emails by adding a custom header called “X-SMTPAPI” (contains a JSON string like this: {“category”: “Example Category”}). See https://sendgrid.com/docs/API_Reference/SMTP_API/categories.html

How would I do this in Graylog?

[jochen]

@Andy

What I’m looking for is a way to add a custom SMTP header.

That’s not supported by the Email Alarm Callback shipped by Graylog.

Feel free to create a feature request at Issues · Graylog2/graylog2-server · GitHub.