KB-1622 Sending an email with an attachment to a process in Appian Cloud fails

Symptoms

Sending an email with a large attachment to a process in Appian Cloud fails. The total size of the email is less than the 25 MB limit for Appian Cloud.

Cause

This is due to the overhead in encoding the email attachments. The 25 MB limit is based on the encoded message size, not the original or raw file size. The encoding adds about 33% overhead. Due to this, depending on the attachment the practical limit is around 18 MB.

Action

Try compressing the attachment or use a file share system instead.

Affected Versions

This article applies to all versions of Appian Cloud.

Last Reviewed: July 2018

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