"Message being sent exceeds the message size" error is received when sending emails with very large attachments in Hosted Email Security (HES)

- Updated:
- 26 Jan 2017
- Product/Version:
- Hosted Email Security
- Hosted Email Security 3.0
- Platform:
- Not Applicable N/A

Summary

When Microsoft (MS) Exchange 2007 is the Mail Transfer Agent (MTA), you cannot send emails with attachments larger than 10 MB. Instead, you receive a Non-Delivery Receipt (NDR) with the error:

(0x80040610): The message being sent exceeds the message size established for this user.

However, there are no policies set to block attachments larger than 10 MB in the HES/HES - Inbound Filtering console.

Details

MS Exchange Server 2007 sets 10 MB as the default global message limit. This is Microsoft's best practice to help prevent Denial of Service (DoS) attacks.

To adjust this limit to the desired attachment size, contact Microsoft Technical Support for assistance.

Rating:

Category:

Troubleshoot

Solution Id:

1036821

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