Information Store Error – An Attempt to write to the file….

Information Store (672) SG1: An attempt to write to the file “D:\SG1\E00.log” at offset 1253376 (0x0000000000132000) for 512 (0x00000200) bytes failed after 1 seconds with system error 1784 (0x000006f8): “The supplied user buffer is not valid for the requested operation. “. The write operation will fail with error -1011 (0xfffffc0d). If this error persists then […]

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Exchange 2003 to Exchange 2010 Mailbox Move Fails with “Error: Property Expression Isn’t Valid

We were moving our mailbox from our old Exchange 2003 server to a new Exchange 2010 server, we moved the vast majority of people no problems, however there were about 10 or so users who we had this error with. Problem: “Property expression <blah> isn’t valid. Valid values are: …..” Now the user’s mailbox on […]

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Delays to outgoing messages from Exchange 2003 using Postfix MTA

Was getting the problem that mails were being delayed from Exchange when sending outbound via a Postfix SMTP relay. After much work to try to determine the issue, I discovered that the Postfix server was responding with 400 errors for domains that did not exist or for domains that didn’t even have MX records. I […]

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