I've noticed that occasionally, SalesForce will replace a file attachment I send via email with an html attachment that auto-refreshes and downloads the file via browser.

So for example, if I attach a 9 MB file called foo.zip to an email I send through SalesForce, the recipient gets an email containing foo.zip.html

Where is this set and how does SalesForce determine which attachments to substitute?

1 Answer 1


I believe it's over 3mb: http://www.salesforce.com/us/developer/docs/api/Content/sforce_api_objects_attachment.htm

Also an idea to increase the limit: https://success.salesforce.com/ideaView?id=08730000000l5PAAAY

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