Mutt is terminal based and has lots of keyboard shortcuts and
we can make it behave like traditional pine or vim-like (j/k for down/up)
or emacs-like.

If you are a pine-user, then following advantages of mutt are likely
to be attractive. 

 - Can save/pick attachments from our current PC (instead 
   of email-server).
 - Can open attachments directly without having to save 
   the pdf/doc/jpg files
 - Use your favorite editor for writing emails (emacs/vim/nano)
 - Delete just one or more attachments (to save space)
 - Use tab for completion (like bash) for email-addresses,
   folder-names, etc.
 - Search through emails: either just subject field,
   or to-field, or entire header, or entire body. 
   (I used search "Alpine in header" to find your email-addresses.)
   Applying filters is really very easy.
 - Different colours for replied/unread/etc
 - Edit an email directly (to put a more suggestive subject to help 
   in searches, etc.) Or edit any email in the INBOX and make it look as unread.
 - Attach multiple files from the command line and then start writing
   in the body.  
 - Attach one or more files and send to recipients: all specified from command
   line in a very non-interactive mode (for saving time).
 - Can tag multiple emails and save them all into a folder, or reply-all
   (and edit later which email addresses should really be sent, etc.)
 - Sort emails based on size or sender or subject or thread.
    (sorting based on size helps in deleting the largest unwanted attachments ONLY)

I personally feel the presence of keyboard shortcuts helps in saving
our time in browsing/searching through emails. 

If you can install mutt in linux, it will be better.
Mutt is already there in bhairav.
One can use mutt to read gpo email id too.

I am keeping/updating some files at
https://www.ee.iitb.ac.in/~belur/foss/mutt/

I look forward to increasing mutt-usage to make our email browsing
efficient and faster.