Sorry, I was late. Mu4e and slrn can acces your cached your remote imap and nntp folders with an mbsync (isync pkg) maildir and a news spool (slrnpull setup) re

Sorry, I was late. Mu4e and slrn can acces your cached your remote imap and nntp folders with an mbsync (isync pkg) maildir and a news spool (slrnpull setup) respectively, so the access is ultrafast compared to the crawling GNUs, even when used with fiber connections.