MailVault

About

MailVault links to your email services through IMAP and saves all your messages to your computer in the widely compatible eml file format, which remains accessible at any time. If you are running low on storage, you can archive older emails locally to reclaim space while keeping every message secure. When closing a hosting account or changing providers, you can preserve your entire email history before it disappears. The service supports Gmail, Outlook, Yahoo, and any other IMAP‑based email provider. It features OAuth2 authentication, threaded conversations, comprehensive search, and includes all attachments. Your emails stay on your own hardware.