The format of PST files is proprietary, designed to only be opened by Microsoft mail applications. These applications include the Entourage mail client for the Macintosh and the web-based Office 365 Mail (the “Outlook” tile in the Office 365 environment).

The PST file is a mail archive file created by Microsoft for its family of “Outlook”-branded mail applications. These instructions are aimed at faculty and staff who primarily use an Outlook email client on a PC or laptop and have had to create a locally-stored mail archive for some reason. If you only access Pitt Email (Outlook) on the web and have never run into any email quota problems with your Pitt Email account, then you won’t need to read this page. Unless you store your archived mail folders on a server or manually back them up yourself, you run the risk of losing your old messages if your hard drive fails.įor this reason, users that have had their Pitt Email (Outlook) account migrated to Office 365 should consider moving their archived files back to their default inbox, where they will be easily available and regularly backed up by Microsoft. This solution is functional but not very secure. These were usually doled out in single gigabyte increases.īecause of these storage limitations, many users chose to store their old mail messages locally, in PST archive files on their primary PC or laptop. Enterprise Exchange started users with 500 megabytes of storage (a half gigabyte) and then required Help Desk tickets to acquire additional space. This represents a significant increase in available space when compared to the default storage allocation of the older, on-premises Microsoft Exchange service (Enterprise Exchange). These instructions cover how to move saved messages from local mail archives (PST files) to your online Office 365 mail storage space on the Microsoft cloud.Īll Pitt Email (Outlook) users that have been migrated to Office 365 Mail are allocated at least 50 gigabytes of storage space on the Microsoft cloud. One feature that most users will appreciate is the increased amount of storage space for saved mail. The University’s migration of faculty and staff electronic mailboxes to Office 365 is bringing many new benefits to Pitt Email users.

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