I'm currently getting the "Postman: wp_mail has been declared by another plugin or theme, so you won't be able to use Postman until the conflict is resolved." error, and I found out the plugin that is causing this is MyMail.
I do have the most recent version of it, and I've tried uninstalling and reinstalling the plugin using both the WP backend and FTP to no avail. I'm sure there's some kind of setting that needs to be fixed.
Do you have any idea on how I could fix this?