Log Message:
Update esmtp to 1.2.
While here, set LICENSE=gnu-gpl-v2 and add user-destdir installation support.

News
~~~~
THIS PROJECT IS NO LONGER BEING MAINTAINED. IF IT DOESN'T WORK FOR YOU SEE
THESE LINKS <http://esmtp.sourceforge.net/links.html>.

  * Version 1.2 (2009-12-24):

    * Make force_mda in the esmtprc to work with the -t option (based on patch
    by Sourav K. Mandal)

  * Version 1.1 (2009-12-16):

    * Option to force local only MDA (Robert A.M. Diamond).

    * Use locking in esmtp-wrapper (Phil Sutter).

    * Update mutt option name in the user manual (Wu Fengguang).

  * Version 1.0 (2008-10-09):

    * Fix NTLM authentication (Nils Rennebarth).

    * Option to disable Message-ID header (Phil Sutter).

  * Version 0.6.0 (2007-09-03):

    * Handle CR-LF newline endings when parsing the headers.

    * Wrapper script for off-line mail delivery (Phil Sutter).

    * Document how to get CA certificates.

    * Corrections to the manpages (Reuben Thomas).

    * Tips for adding missing Date: headers in messages for local delivery
    (Bruce Schultz).

    * Use a reasonable default for the reverse path when one is not
    specified, instead of an empty one.

    * Prevent segfault expanding %F in the MDA string when the reverse
    path is not specified.