Seeking Advice on Backing Up Emails from External Email Providers - Not Hosting

This page summarizes the projects mentioned and recommended in the original post on /r/selfhosted

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  • ImapSync

    Imapsync is an IMAP transfers tool. The purpose of imapsync is to migrate IMAP accounts or to backup IMAP accounts. IMAP is one of the three current standard protocols to access mailboxes, the two others are POP3 and HTTP with webmails, webmails are often tied to an IMAP server. Upstream website is

  • There are two solutions for this 1. Using a tool called imap-sync to sync all your emails (it has a great incremental sync). You can run it periodically via cron 2. Using the same or similar tool and export to a database.

  • offlineimap

    Read/sync your IMAP mailboxes (python2) [LEGACY: move to offlineimap3]

  • There are also isync and OfflineIMAP which sync email locally.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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