Outlook 2010 is limiting how big my attachments can be. How can I change this?

Question

Outlook 2010 limits the size of attachment I can send, how can I make this bigger or unlimited?

Answer

To modify the default attachment limit size in Outlook 2010 follow these steps:

1. Exit Outlook.
2. Start Registry Editor.
3. Locate and then select one of the following registry subkeys:

   HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0OutlookPreferences
   HKEY_CURRENT_USERSoftwarePoliciesMicrosoftOffice14.0OutlookPreferences
   Note Manually create the path in the registry if it does not currently exist.

4. Add the following registry data under this subkey:
   
   Value type: DWORD
   Value name: MaximumAttachmentSize
   Value data: An integer that specifies the total maximum allowable attachment size. For example, specify 30720 (Decimal) to configure a 30-MB limit.
   Notes
   • Specify a value of zero (0) if you want to configure no limit for attachments.
   • Specify a value that is less than 20 MB if you want to configure a limit that is less than the default 20 MB.
5. Exit Registry Editor
6. Start Outlook.

Keywords:Outlook 2010, attachment size