Microsoft Exchange Server requirements (EWS)

When backing up and restoring Microsoft Exchange data using EWS, the DS-Client computer minimum system requirements are as follows:

For domains with less than 25,000 items per mailbox:

• Processor – Intel Core i5

• Memory – 16 GB

For domains with more than 25,000 items per mailbox:

• Processor – Intel Core i7

• Memory – 32 GB

Before you create an Email message backup set using EWS, ensure that the applicable prerequisites are met and that Microsoft Office 365 plug-in has been installed with DS-Client. For more information, see ““DS-Client Installation: Microsoft Office 365 DS-Client plug-in required:”” and “Prerequisites for backup and restore of Exchange data”.