Emails sent from the ideas portal have a From address of firstname.lastname@example.org
The from address should be customizable to be branded just like the reply-to address. If my company domain name is example.com, I want to have the from email address be something branded like email@example.com or firstname.lastname@example.org. A customer may trust emails from example.com because they already have a relationship with me - my customer may not trust aha.io and this may get sent to spam, ignored, or misfiled.
At this time, the available functionality is to customize the "Reply to" field to ensure that any customer responses can be directed back to you (vs. Aha! support). This is available via Account settings -> Configure idea portals -> Email branding. At this time, we do not have plans to update the From field email address.
There is another challenge preventing us from making the From address customizable. Emails must be signed with DKIM in order to avoid being rejected as spam, but DKIM requires DNS configuration for each from address. So currently all from addresses must be aha.io addresses for DKIM to work.