CRM : An error occurred while promoting a Microsoft CRM e-mail message

Attachment of size bigger than 8 mb are not allowed to be tracked in CRM 4.0

Work Arounds:

You need to change the
following 2 lines in your web.config file to increase the size beyond 8MB

1.

This maxRequestLength determines the size of files being attached in CRM as
well as adjusting the size in the Settings area.

2.

This second maxRequestLength line determines the size of email attachments
that can get tracked when users press track in Outlook.


Note:

Editing web.config did not resolve the issue, but when I changed the 'Maximum
file size' value in Settings>System Settings>E-Mail tab it worked.

Location of web.config: c:\INetpub\www