How to stop forwarding gmail messages on iPhone?

I lost my iPhone, and I have all my gmail messages forwarded to it. How can I disable access to gmail on my iPhone? I don't want people reading my mail!!! Help me..

How to stop forwarding gmail messages on iPhone?
You can only do it through the phone itself. Call AT%26amp;T customer care and report the phone stolen/lost. Once you do this, the line will be cut off. Whom ever has your phone won't be able to read your emails

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