Email Size Limitations
You need to send an email that has a large attachment and the email is being bounced with an error similar to the following:
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 552 552 Message size exceeds maximum allowed size of 10485760. Closing transmission channel. (state 18).
Your email message is too big. Emails to and from our mail servers have a mail message size limitation of 10 MB. This is not the maximum attachment size - this is the maximum mail message size which includes the size of the attachments. Please note that when attachments are emailed, they are MIME encoded which results in a 20% size increase in the email message. This means that the largest attachment you will be able to send will be approximately 8 MB.
You will need to send multiple emails, compress your files, or use a file repository in order to transmit your files.