set header_cache="~/.mutt/hcache" I have more than 10k emails sitting in my inbox and with this option mutt loads the headers in around one second (over the In

set header_cache="~/.mutt/hcache" I have more than 10k emails sitting in my inbox and with this option mutt loads the headers in around one second (over the Internet). And of course I could fetch all the emails in the background and use mutt locally, but I didn't bother yet.