Mailporter — hosted IMAP mailbox migration

An online IMAP migration panel for small businesses and agencies tired of command-line email moves

Problem

When small businesses switch email providers (to Google Workspace, Microsoft 365, or migrating on behalf of clients), the move is still painful: IMAP sync, folder filtering, resumability, post-migration verification. Most people resort to imapsync in a terminal or half-broken built-in tools. Hosts and agencies repeat this for every new client, often missing folders or not knowing a migration failed halfway.

Solution

A web-only mailbox migration panel: enter source and target IMAP credentials, it enumerates folders, shows per-step progress, resumes on failure, and produces a reconciliation report (how many messages moved, skipped folders). Email bodies are never stored—just relayed—so it stays privacy-friendly for small teams.

Users

Small business IT leads, hosting providers, web agencies, and independent consultants doing Workspace/M365 migrations for clients

MVP

IMAP-to-IMAP folder enumeration and incremental sync; visual progress and ETA; failure retry and resume; post-migration reconciliation report (count, size, skipped items); no persistent storage of message bodies.

Revenue

Charge per mailbox or per GB migrated (e.g., from $19 per mailbox, volume add-ons); offer bulk agency pricing and a white-label panel.

Why now

Remote and multi-cloud work makes provider switching more common, yet imapsync-style tools remain ops-heavy; an indie dev can win with a clean hosted UI and usage-based pricing in this overlooked niche.