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Zendesk Attachment Size Limitations Explained

Learn about the size limitations for attachments in Zendesk, including inbound and outbound email restrictions.

What are the attachment size limitations in Zendesk?

Zendesk has specific size limitations for attachments to ensure smooth processing. The inbound email and web form attachment limit for a single file is 50 MB, while the total of all outbound email attachments cannot exceed 10 MB.

If these limits are exceeded, attachments are processed as linked attachments instead. For outbound email, the attachment limit for a single linked file is 50 MB, and up to 500 files can be attached. If you try to attach a file larger than 50 MB, an error message will inform you that the file is too large.


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To enable email attachments for agents, you need to adjust the settings in the Admin Center. This allows agents to attach files directly to ticket comments, which are then included in email notifications as actual attachments rather than links….

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Yes, end users can attach files to Zendesk tickets if the feature is enabled. This allows them to send attachments when filing a ticket or responding to an email notification. To enable this, go to Admin Center, click on 'Objects and rules' in the…

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How are email attachments different from linked attachments in Zendesk?

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