Sendmail privacy flags in MailScanner init script

Ugo Bellavance ugob at camo-route.com
Fri Sep 1 22:10:03 IST 2006


Steve Freegard wrote:
> Hi Ugo,
> 
> Ugo Bellavance wrote:
>> Hi,
>>
>>     In the MailScanner init script, privacy options are stated for 
>> sendmail:
>>
>> -OPrivacyOptions=noetrn
>>
>> Why is that?  Shouldn't these settings be defined in sendmail.mc (cf)?
> 
> I suspect this is a safety net -- you really really don't want the 
> incoming Sendmail process to allow ETRN for any hosts, because ETRN 
> would result in message being delivered to the host directly from 
> mqueue.in, bypassing MailScanner completely.
> 
> It's in the initscript for MailScanner so you don't have to remember to 
> put it in the privacy options and rebuild the .cf file when you install 
> MailScanner.

I understand, but I think that most sendmail package disable etrn by 
default.  This is slightly problematic when you want to use different 
privacy options like goaway, you have to edit the init script...

> 
>>
>> Does that override the settings in the config file?
>>
> 
> Yes -- but only for the incoming Sendmail process, the outgoing process 
> will use whatever is configured in the .cf file.

OK

> 
> 
> Cheers,
> Steve.

Ugo



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