Using iPhone Mail to access my Outlook 2007 account with Verizon iPhone 4 (iOS 4 mail) prevents Outlook 2007 access and returns the message below.
The problem is iOS4 multitasking which suspends the iPhone 4 mail client. Force quitting iOS4 mail restores access. How can I configure Outlook 2007 to allow multiple access? I am using Verizon CDMA for access.
Task 'email@example.com - Receiving' reported error (0x8004210E) : 'Your mailbox is temporarily unavailable because another e-mail message is being delivered to it or another mail application is accessing it. The server responded: -ERR [IN-USE] account is locked by another session or for maintenance, try again.'