Christopher Juckins

http://msmtp.sourceforge.net/

https://wiki.archlinux.org/index.php/Msmtp

Kept getting an error:

# cd /usr/local/src/msmtp-1.4.27]
# make check
Making check in src
make[1]: Entering directory `/usr/local/src/msmtp-1.4.27/src'
  CCLD   msmtp
tls.o: In function `tls_init':
/usr/local/src/msmtp-1.4.27/src/tls.c:1100: undefined reference to `gnutls_priority_set_direct'
collect2: ld returned 1 exit status
make[1]: *** [msmtp] Error 1
make[1]: Leaving directory `/usr/local/src/msmtp-1.4.27/src'
make: *** [check-recursive] Error 1

The solution is simple:

# ./configure --with-ssl=openssl
# ./make check
# ./make install

Hint page: http://www.andreaswacker.com/blog/2012/02/04/centos-source-install-wget-113-and-gnutls/