Am 31.07.2013 um 03:32 schrieb Michael Ash <mash@econs.umass.edu>:

I am still having a problem with left-justifying the date in letters. The date is towards the left but is aligned several mm to the right of the other text.

This is fixed, there module produced a unwanted space at the begin of the reference line which is now gone.

BTW are the values for the "alternative" key ("example", "e", "c", etc.) documented somewhere?

You can look at the predefined arguments in the old manual which is available online: https://bitbucket.org/wolfs/correspondence/downloads.