email system

[ffa]

I updated fat free and I really like the new update, fixed and added a decent amount. Thank you. 

I read the wiki on emails, but it's not very descriptive of the options in setting.yml file.

Please provide more information on the following:

1. what happens if I set :attach_to_account to false for "Email dropbox"?

2. what is 'Reply via email'?

3. what happens if I set it to the same email address as "Email dropbox"?  or, same email address and folder?

# Settings for the Email dropbox (IMAP)

# - Connection settings for the IMAP account, server and folders.

#------------------------------------------------------------------------------

# Settings for 'Reply via email' inbox (IMAP)