Emails forwarded to me are bouncing back to sender

Emails forwarded to me are bouncing back to sender

Several emails that were forwarded to me bounced back to the sender. It seems to be happening only with emails that have long message threads, attachments, and lots of links. Is there a way to change the MailPolicy settings to allow messages like this through? It's a real problem as I often receive emails of this sort from clients. 

The error message on the sender's end looks like this:

Final-Recipient: rfc822;  xxxx@lindykae.com
Action: failed
Status: 5.2.3
Remote-MTA: dns;  mx.zoho.com . (204.141.32.121, the server for the domain  lindykae.com .)
Diagnostic-Code: smtp; 554 5.2.3 MailPolicy violation Error delivering to mailboxes
Last-Attempt-Date: Thu, 05 Oct 2017 12:17:03 -0700 (PDT)