When the synchronization (OAB and GAL) fails, the error 0x80072f06 appears. However, there are a number of alternative causes for error code 0x80072f06. The following are some possible causes for Outlook Error 0x80072f06:

1. The Outlook application was installed incorrectly.
2. When the Windows system files are corrupted. In addition, if OAB is not properly updated.
3. Another cause of error number '0X80072f06' is security certificates issued by Exchange.

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