In Wrike you have the ability to add a comment to a task by email by adding the task email address to an email you send to someone, or by copying email@example.com with the task subject. This is great if everyone you are emailing has a Wrike account, all emails are logged to the task and you have an audit trail, you dont have to manually copy the contents of emails into Wrike and manage your mailbox.
The problem is that not everyone i email has a Wrike account, if someone without a Wrike account responds to an email with a wrike email address in it, then it bounces and is not logged in the task comments. I'm sure Wrike would love it if everyone had a Wrike account but this is not practical, i have suppliers and customers and i can not force everyone i work with to work in Wrike. Currently i have to manually copy the contents of emails to my Wrike tasks and manually annotate them to create an audit trail for my tasks.
What would be ideal is the ability to add an email address to an approved/whitelist list with a name, i could then add people from my address book and when they respond to emails with the Wrike email address copied in it would automatically add their responses to the comments of the task. I would then have a complete audit trail with no manual steps. I could add or remove email addresses to only allow who i want externally to be able to comment on tasks. It would be like having an external collaborator role in Wrike.