Attempting to migrate mail for 30 users (single site, single domain) from qmail IMAP on BSD 5.4 to Exchange 2003 SP2 running on MS Small Business Server 2003 R2, using the migration wizard that comes with Exchange 2003. We have created the requisite .csv file and many accounts migrate without error.
A few accounts, however, do not fare so well. We are getting the following messages on the SBS server before the migration wizard blows up and disappears:
Event ID: 8067 - Unable to allocate memory
Event ID: 8071 - Unexpected error while streaming out data
The SBS server is an HP Proliant ML-310 with 3GB of ECC DDR2 over a 100baseT connection. The qmail server is far less robust, but shares the 100baseT line. Migration attempts have taken place during busy hours and dead hours with similar results.