Inbox Hop vs MailJerry

Inbox Hop migrates email, calendars, and contacts among Microsoft 365, Google Workspace, and on-premises Exchange. Projects can move data cloud-to-cloud, from cloud to on-premises, or in the reverse direction. Microsoft 365 connections use Exchange Web Services with guided Azure app registration and permission checks. Google Workspace uses Google APIs and service-account domain-wide delegation, avoiding per-mailbox credentials. After scanning, the platform suggests mailbox matches; users can change assignments or create missing destination mailboxes automatically. Run modes include scanning, folder-structure-only copies, full migrations, and incremental delta runs. A full migration consumes one prepaid credit per mailbox regardless of data volume, while scans and delta runs use no credits. On-premises Exchange can connect directly over HTTPS or through a Windows connector that polls outbound HTTPS without inbound firewall rules. Monitoring shows transfer rate, items per minute, health, and chronological logs. Inbox Hop describes encrypted connection secrets, tenant isolation, role separation, permission validation, and append-only audit records. It is intended for organizations changing mail platforms.

MailJerry is a cloud tool for moving email data directly between providers. It transfers messages, folders, drafts, labels, and sent objects, and says it works with all IMAP providers; named services include Gmail, Microsoft 365, Exchange, Yahoo, GMX, and iCloud. Bulk migration can handle multiple mailboxes, with CSV upload available on paid plans. Paid features can synchronize mailboxes, transfer new messages automatically, or back up email on daily, weekly, or monthly schedules. Controls include date-range filtering, bandwidth throttling, migration status details, and automatic reconnection after a server interruption. MailJerry says email data is encrypted, message contents are not readable by the tool, and messages are not stored. It states that its migration tool complies with GDPR. The free plan allows unlimited mailboxes but caps each at 150 MB and concurrent migrations at three; it excludes auto-sync, backup, bulk migration, CSV upload, and date filtering. The monthly plan is $14.90 a month, and the yearly plan is $129.90 a year; both include VAT. Calendar and contact migration are not supported.