MailsDaddy provides a solution for email migration and management, aiming to streamline the intricate process of transferring emails between various platforms.
https://sites.google.com/view/email-recovery-adda/products/zimbra-converter
https://sites.google.com/view/email-recovery-adda/how-to/tenant-to-tenant
https://sites.google.com/view/email-recovery-adda/how-to/configure-gmail-to-outlook
https://sites.google.com/view/email-recovery-adda/how-to/convert-mbox-file