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Title
Error: Unable to open mail file xxx - Your Address Book does not contain any cross certificates capable of authenticating the server -
Description
We are migrating Notes users to Exchange and or Exchange Online. While migrating, we encounter an error like below:
"Error: Unable to open mail file CN=DOMINOSERVER/O=DOMAIN!!mail\utest for User TEST on server CN=DOMINOSERVER/O=DOMAIN, CN=DOMINOSERVER/O=DOMAIN!!mail\utest (CN=DOMINOSERVER/O=DOMAIN!!mail\utest) - (6453) Your Address Book does not contain any cross certificates capable of authenticating the server."
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Cause
The error was caused by the ID that is being used for the migration, which belongs to a different domain from the Notes server where the data being migrated is located. -
Resolution
RESOLUTION 1
Make sure the correct ID file is being used at the worker, that can access user's domain and mailbox.
RESOLUTION 2
Cross certify the notes ID used for the worker with the user's domain.
1. On the worker machine, open the Notes client and connect to user's mailbox mail\utest.nsf at server CN=DOMINOSERVER/O=DOMAIN2. When prompted to accept the certificate, click on Yes.3. Exit the Notes client.4. Launch the Notes client again and connect to user's mailbox again. Verify you do not receive any prompt to cross-certify again. If prompted again, click on Yes.5. Exit the Notes client.6. Try run user migration again. You should not receive the error again.