Emails sent out by Zoho Campaigns seem to be blocked by spam filters because the 'envelope-from' setting in the header address is not correct.

With 'Reply Tracking' disabled, and 'Sender Address' and 'Reply-To' addresses set to the same email address, and senders domain and email correctly authenticated, ZC uses a ' .....[@]zcsend.net' email address in the 'envelope-from' field instead of the Sender Address.

This seems to be picked up by spam filters and blocked. Can this be fixed?