Dave Goldman posted a guidance on “how to troubleshoot error 0x8004010f when downloading an OAB in Outlook.” When it comes to downloading an OAB the following error code [ 0X8004010F ] is the biggest pain for everyone, and the most misunderstood error. The number one thing is to understand is that this error means MAPI_E_NOT_FOUND:

C:\dgoldman>err 0X8004010F# for hex 0X8004010F / decimal -2147221233ecNotFound ec.hecAttachNotFound ec.hecUnknownRecip ec.hecPropNotExistent ec.hMAPI_E_NOT_FOUND mapicode.h# 5 matches found for "0X8004010F"

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