Am 21.07.2013 14:56, schrieb Scott Robbins: > On Sun, Jul 21, 2013 at 02:31:32PM +0200, Alexander Dalloz wrote: > > >> >> If you decide a full blown MTA is too heavy weight in your environment >> on the different nodes (Postfix isn't the ideal choice for a so called >> null client), then have a look at ssmtp for example. It is provided by EPEL >> >> http://pkgs.org/centos-6-rhel-6/epel-x86_64/ssmtp-2.61-19.el6.x86_64.rpm.html > > If I remember correctly, this does require an outside host--that is, you > have to use your ISP's mailserver as relay. You are correct, a null client sends towards a central mailhub. That will be a properly configured MTA which does everything necessary to be compliant with current mail exchange standards. >> There is another null client called msmtp >> >> http://msmtp.sourceforge.net/ > >> but that one isn't available being packaged for CentOS. > > > That compiles very easily on CentOS, however. Again, not sure if it can be > used without making use of your ISP's mail server. We are in a professional, enterprise environment I presume. Thus the self compilation approach is discouraged. Even if it is a small program which compiles easily. Unless you anyhow manage to maintain your own set of RPMs and your local yum repository. > I have an ancient page (slow site, not always up) on ssmtp, at > http://www.scottro.net/qnd/qnd-ssmtp.html. It hasn't been maintained for > awhile, there's a better page at the arch wiki. > > https://wiki.archlinux.org/index.php/SSMTP Alexander