Mail / Outlook
Open more than 10 mailboxes in Outlook

Open more than 10 mailboxes in Outlook

Sometimes people need to open more than 10 mailboxes in Outlook but this is not possible due to a limit of the default Outlook settings.

With a simple registry entry you can change this.

Key: HKEY_CURRENT_USER\Software\Microsoft\Exchange
Value name: maxnumexchange
Value type: REG_DWORD

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Exchange]
"maxnumexchange"=dword:00000015

But I wouldn’t change this to a too high value – 15/20 and than you should consider in having 2 or more Outlook profiles.

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