If you are searching for the most reliable tool for Mac OS that helps backup and migrate Zoho mails is
MacSonik Zoho Backup Tool for Mac. The software can back up and migrate Zoho mail to Office 365, Gmail, iCloud, HostGator Emails, etc. It maintains the meta properties of Zoho Mail during email backup. This tool is a complete and foremost backup solution that keeps the email formatting after & during the Zoho Mail backup on the Mac machine.