Ok, I misread your comment then. I thought you meant some sort of a tool/web gui which fastmail provides but others don't. Do those privacy focused providers even prohibit the import of mails via IMAP from your local…
I found isync/mbsync to be a reliable tool to migrate my mail from one email provider to another.[1] You have to be into unix-y command line, though. [1] See e.g.…
Ok, I misread your comment then. I thought you meant some sort of a tool/web gui which fastmail provides but others don't. Do those privacy focused providers even prohibit the import of mails via IMAP from your local…
I found isync/mbsync to be a reliable tool to migrate my mail from one email provider to another.[1] You have to be into unix-y command line, though. [1] See e.g.…