By changing the email address for a member do you mean changing the email address of another user on Trello?
If that, then only that person can change their email by going to https://trello.com/username/account
(or if you have their credentials then you can do that yourself)
But if you need to change the team member on the board, then just beside the Board name there would be an option for that.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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