[CentOS] Re: CentOS 5 and removing sendmail

Les Mikesell lesmikesell at gmail.com
Mon Dec 3 17:22:17 UTC 2007


Joseph L. Casale wrote:
>> No --- Don't --- Install another MTA before you try to remove sendmail.
>> Warned you have been!
> 
> 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? If you take out sendmail first, it removes other dependent stuff, but if you install postfix and the switch-mail util, when you remove sendmail it goes away without complaint.

'Stuff that needs sendmail' normally executes a command named sendmail, 
usually as /usr/sbin/sendmail.  Installing postfix will supply one, and 
system-switch-mail manipulates which one is active if you have both 
through a symlink scheme.  If you try to run something that needs 
sendmail without a working /usr/bin/sendmail program, it will fail to 
deliver anything but your system won't crash and burn.

-- 
   Les Mikesell
     lesmikesell at gmail.com




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