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If i don't log into the Portal, it can't get my mail. After my CAS session expires, it can't get my mail.
This help? ~awp9
Said another way, CAS without proxy requires the browser in each authentication "transaction". In the case of a portal or other middle tier application, the component needing to authenticate isn't the browser, it's an application like a portal. So proxy authentication allows one application (portal) which accepted and validated a CAS ticket to get data from another application (email) which is configured to trust the first (portal).
~susan.bramhall@yale.edu