When creating a hyperlink in an Asana task, you cannot create a mailto:email@example.com link because Asana automatically appends “https://” to the start of the link.
As a workaround, you can paste in an existing mailto: link, but if you try to edit the link, Asana will add https:// to the front and break the link.
I have to send a weekly email to someone and I decided to automate this in Asana as a recurring task with a mailto: link which will open an email to that person with the subject and body pre-written. I just need to drop in an attachment and get on with my day. I can paste this link into Asana, but if I want to edit it I have to do so outside of Asana and re-paste it. Here’s a video description if that wasn’t clear Loom | Free Screen & Video Recording Software
This is partially a follow up to the hyperlinks thread Ability to insert hyperlinks - #21 by Maurice_Kindermann