If you received an email from Penneo informing you that the finalization email could not be delivered to the copy recipient, that might be because the size of one or more documents exceeds the max size of 7.5 MB.
When using copy recipients, the size of all files in the final e-mail must not exceed 7,5 MB; otherwise, they cannot be delivered to the recipient.
Read more about file size here: Which files can I upload to Penneo? (file size limits).
If this issue occurs, the related email informing of it will be received by the creator of the case file. In such a case, the files need to be distributed to the copy recipients in another way.
Note: The creator of the case file and the signers of the documents will always be able to access the signed documents by logging in to app.penneo.com. Read more about how to get the document when it's finalized in this article.