Overview

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Learn how to change the maximum message size allowed in Mailman.

 

Critical Concepts

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Mailman can place a limit on the size of a message that it accepts for list postings. The owner can change the limit to try to restrict or allow attachments to be sent to the list.

 

Steps to Take

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To change the maximum message size limit:

1. Log in to the list's administration page: https://mailman.ucsd.edu/mailman/admin/ListName-l with your Active Directory username and password (replace ListName with the actual name of your list. The final character is a lowercase letter 'L' for 'list.')
2. Go to General Options.
3. Locate Maximum length in Kb of a message body (near the bottom).
4. Change the limit to something suitable, or enter 0 for the maximum server limit of 10 MB.
5. Submit your changes.

Note: If you have a message that is larger than 10 MB, you will not be able to send it to your list. You can:

• Break the attachment into multiple smaller attachments and send them separately
• Or post the attachment on a Web page and send the URL.