This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice This article is not considered official documentation for K2 software and is provided “as is” with no warranties.
When you change the 'From' address of Task notifications, task notification emails will always send as default 'K2 Service Account'.
This is by design. If you have SmartActions enabled, the From address will always be the K2 Service Account.
A workaround for this issue is to disable SmartActions in your K2HostServer.exe.config. Then only will it change the "From" address in Task notifications.
If you cannot disable SmartActions in your environment, you will not be able to change the "From" address of Task notifications.
We have an idea logged in ideas.k2.com to include this feature in a future update of K2: https://ideas.k2.com/ideas/APIT-I-92
Please vote for this idea, then you will be able to track the progress of the feature.