Hey @daniellee , im working on alerting through grafana over slack, however due to security concerns our organization doesnt allow to put into s3 unless it is encrypted, that is where im unable to get the images but alerting is working.

is there any way we could configure in the config file to use encryption??

No there is no encryption support built in to the upload. It would not work either as the purpose of the upload is to make the image publicly available (via guid url) so that it can be shown in slack and other communication channels.