Our great sponsors
-
comms-analyzer-toolbox
Tool for OSINT forensic analysis, search and graphing of communications content such as email MBOX files and CSV text message data using Elasticsearch and Kibana
-
WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
If you don't mind Emacs (or even like it), mu & mu4e does a pretty good job of managing large mailboxes. It similarly requires syncing emails, whether via imap or pop3 like the above comment.
I've used the open source commsanalyzer docker in the past to make large mailboxes searchable offline, but it sadly hasn't been too well maintained. See https://github.com/bitsofinfo/comms-analyzer-toolbox