Mass Email from Zoho CRM "From" display

Mass Email from Zoho CRM "From" display

Is there a way to avoid the "From" name in mass emails sent from Zoho CRM showing in the following formats (actual names/domains I have substituted for privacy)?:

Received in Outlook:
name=domain.com@mailer2.zohocrm.com; on behalf of; First Last < name@domain.com>

Received in Gmail:
First Last <name@domain>   via mailer2.zohocrm.com

These changes are a dead giveaway the recipient is part of a mass mailing, even when sending very small batches. Can I instead use our own mail server to send from ZCRM? Would that be the only way to avoid this?