The mail protocol is plain text so it’s not difficult to save emails as individual files. I had such setup some years ago for a company. Emails were stored in one folder per week, each email in its own subfolder with attachments extracted and a meta text file. References were in a database.
I also remember working with a windows email server that saved all emails only as files, no db, although the directory structure was more complicated. But that was maybe 20 years ago…
I also remember working with a windows email server that saved all emails only as files, no db, although the directory structure was more complicated. But that was maybe 20 years ago…