yaak

Yes, you can create a new mailbox and assign the same smtp address as the old one. Some of your other users might still get a "recipient not found" NDR when replying to old messages sent by this person because Outlook doesn't use the smtp address of internal Exchange recipients (no matter what you type into the To field). Behind the scenes it's actually using the LegacyExchangeDN, which will appear in approximate form in the NDR. You'll need to add this value to the mailbox as an additional X500-type email address. You'll probably have to convert some of the characters to the correct format. For example, the NDR might show this: _O=EMPLOYEES_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=UserNamef62@domain.com You'll need to add an X500 address like this: /O=EMPLOYEES/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/[email protected] See this MS support page for more info: https://support.microsoft.com/en-us/kb/2807779?wa=wsignin1.0

Mailbox exports are tricky. The destination path must be in UNC format (e.g. \\servername\sharename\file.pst) and your server, not your account, must have read/write access to the path. For example, if your Exchange server is MYEXSERV, then the share permissions and the NTFS permissions must grant MYEXSERV at least Read+Write/Modify permissions to \\servername\sharename. See New Mailbox Export Request Returns Access Denied.