Github user sebbASF commented on the issue:
https://github.com/apache/incubator-ponymail/issues/44
The URL only works if you are logged in.
So it is likely that the user is already on a Pony Mail page - for example
the manage e-mail page.
I would expect at least a link back to the home page, or perhaps the manage
e-mail page so the user can see the new address has been added successfully.
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