Traction preserves all email headers, both for email messages received
and email messages sent. By
default, a "brief" version of the headers, including only the
most common fields, is displayed in a block at the bottom of the entry.
it can be useful to set the default "header volume" setting
for a particular project to something other than the "brief"
project preference allows administrators to set the header volume to brief,
full, or none.
The brief header volume might
look like this:
The full header volume includes
all headers, and might look like
The none header volume option
causes the header block to be omitted completely.
This option does not affect what email header information is stored
in Traction's journal; it affects what is displayed only.