Quick tips

Mark all messages read
- Step 1: tag all messages matching regex: T.
- Step 2: clear new flag on tagged messages: ;WN

Automatically move read mails out of Inbox

Note: you want to move read mails out of Inbox for very practical reasons
- To not get the message about new email every time you start a new shell.
- If your Inbox grows big, you will experience a delay when logging in to the server. With a huge Inbox, the delay can be extremely long.
By default, all mails are appended to ~/Mail/root
To automatically move read mails to ~/Mail/read_inbox when exiting mutt, add this to .muttrc
```
  set move=yes
  set mbox=+read_inbox
```
This works even when new emails are not in a flat file but in a folder like ~/Maildir/new