In the course of testing with Direct Dialup, we also got the -15064 error when trying to enable Direct Dialup in the I'm at... menu. The only way we got around this error was to open the setup for Direct Dialup in the Key Chain and enter the phone number for the Modem Telephone. We suspect there may be a similar problem with the MS Mail setup. Error -15064 is: kMailSetFailed.
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