When using multiple accounts without clearing cache and cookies, the [pii_email_3c71fd7e05f3e6d820db] issue can occur. This could possibly be due to an erroneous installation of Microsoft Outlook software on the device for [pii_email_3c71fd7e05f3e6d820db].

In addition, the problem [pii_email_3c71fd7e05f3e6d820db] appears in Outlook; if it opens, it is possible that the most recent version has not been updated. The [pii_email_3c71fd7e05f3e6d820db] problem is sometimes difficult to spot. In such situations, the support team can assist you in better understanding what is going on.