Recently, some of our readers reported that they encountered error message #5.5.0 smtp 552 too large.
Updated: ASR Pro
Reason for the error. This error indicates that the size of most e-mail exceeds the size limit set on the primary recipient’s mail server. Solution: If desired, try adjusting the email message as well as the size of the attachment. You can also easily split an email into multiple emails and then try to send it again.