I'm using the .NET Wrapper for the API and I cant for the life of me work out how to search all lists for an email address and return the lists it appears in. If anyone could help or point me the way it would be much appreciated :)
Unfortunately that functionality is not currently available via the API. We've added your vote for the feature and will update this post if it's implemented.
That'd be good, thanks :)
We can finally offer you the ability to find all the lists to which an email address is subscribed via the API. We're sorry it took so long to appear. We just have a massive number of feature requests, and it only makes sense to prioritise them by how many people have requested them. So this one has finally been included.
Hope that helps!