When you promote an e-mail message by clicking Track in CRM in Microsoft Dynamics CRM 4.0, you receive the following error message:
The text entered exceeds the maximum length.
Additionally, the following error message is logged in the Event Viewer:
0x80044331 A validation error occurred. The length of the messageid attribute of the email entity exceeded the maximum allowed length of 100.
This problem occurs because the e-mail entity contains a long subject. However, the current size of the messageid attribute is 100.
To resolve this problem, change the maximum length of the messageid attribute of the E-mail entity. To do this, follow these steps:
via Error message when you promote an e-mail entity in Microsoft Dynamics CRM 4.0: "The text entered exceeds the maximum length". (Require Partnersource Login)