[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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