[CentOS] Re: CentOS 5 and removing sendmail
Stephen Harris
lists at spuddy.org
Mon Dec 3 17:35:30 UTC 2007
On Mon, Dec 03, 2007 at 10:04:30AM -0700, Joseph L. Casale wrote:
> Well, unless you install postfix first, then system-switch-mail, then
> execute switch-mail, how does the stuff that needs sendmail know what to use?
This is the "alternatives" system at work. /usr/sbin/sendmail
is a symlink to /etc/alternatives/sendmail. The "alternatives"
system will manage the /etc/alternatives/sendmail symlink, so that
if your mail system is configured as "sendmail" then it points to
/usr/sbin/sendmail.sendmail which is the _actual_ sendmail command
provided by the sendmail RPM package. If your mail system is postfix
then it points to /usr/sbin/sendmail.postfix instead.
--
rgds
Stephen
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