My company uses Asana as a recruiting CRM where we have the project as the job and candidates as the tasks. We put all general candidate info in the notes section such as contact info, social media links, etc.
In our case when we email candidates we have to get the email address in the notes section and paste it in our email platform.
It would be cool to have emails sent out from Asana with a mail merge/email delay feature that integrates with Gmail, Outlook, etc. Or have a customizable field within the tasks where you can add certain information. Kind of like formatting a spreadsheet cell to display certain data.