The consequences of turning off sendmail

Andrew Falanga af300wsm at
Sun Sep 28 04:00:59 UTC 2008

On Sat, Sep 27, 2008 at 8:20 PM, Sahil Tandon <sahil at> wrote:
> Andrew Falanga <af300wsm at> wrote:
>> This question comes from complete ignorance about this stuff (what
>> happens when turning off sendmail), but if I turn off sendmail will
>> system messages still get delivered?  Also, I'm going to be using this
>> box as a web server and I'm using Joomla!.  If I turn this off, will I
>> still get the notifications that new users have signed on, etc.?  I'd
>> like to turn it off because the box doesn't sit inside of a fully
>> qualified domain (it sits inside a 192.168.x/24 network), but will
>> host web services for  Obviously, requests
>> sent to on port 80 are forwarded to this box (actually,
>> internally it's  Also, (for those who have endured
>> helping me work through the issues with our mail server) until I get
>> things worked out with DNS this new server will not be hosting e-mail
>> for this domain (, that's temporarily being done at
>> google mail.
>> So, basically, what sort of trouble am I going to get into by turning
>> off sendmail?  Also, I think I'm going to implement DNS, an internal
>> thing, to make this box happy and then point the resolver to use the
>> Internet DNS servers for everything else.
> You can turn off the Sendmail daemon so that it does not actually listen
> for incoming connections or act as an MTA in the conventional sense.
> But local utilities like cron can still invoke the /usr/sbin/sendmail
> command to send you notifications.

Thanks, just wanted to make sure before doing it.


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