Description of problem:

--enable-memchecker is not given:

+++ Pre-configuring the framework memchecker
checking if --enable-memchecker was specified... no (adding "memchecker" to --enable-mca-no-build list)

and libesmtp is not present in build root:

checking --with-esmtp value... simple ok (unspecified)
checking --with-esmtp-libdir value... simple ok (unspecified)
checking libesmtp.h usability... no
checking libesmtp.h presence... no
checking for libesmtp.h... no
checking if MCA component notifier:smtp can compile... no

memchecker is present in openmpi 1.3+.  libesmtp support appears to be new to 1.5.