SUMMARY: Configure sendmail in Solaris 9 to not use DNS resolution for the email addresses

Bernd Schemmer wrote:

Hi,

Looks like we need to compile our own sendmail daemon to disable the DNS 
server usage or use another mail program like postfix.

Thanks to

Bertrand.Hutin
Alan Pe


The original question is below.


regards

Bernd


>We're trying to configure sendmail on a machine running Solaris 9 for 
>sending mails via an "smart"  relay host (DS... in /etc/mail/sendmail.cf)
>
>The problem we have is,  that sendmail trys to resolve the domain names 
>of the target email addresses, e.g. if we send an email to 
>bs@mysubdomain.mydomain.de sendmail trys to "resolve" 
>mysubdomain.mydomain.de . This fails because the nameserver used does 
>not know this domain and because of this sendmail does not send the 
>email to the relay.
>
>At least that is what the mail  people in our company told us. They also 
>told us  that the "normal" sendmail  daemon uses a file called 
>/etc/mail/service.switch to configure the name resolution but that the 
>use of this file is disabled in the sendmail daemon from Solaris 9.
>
>
>If we change the hosts entry in /etc/nsswitch.conf to "hosts: files" 
>instead of "hosts: files dns" everything works. 
>
>How can we tell sendmail to change this behaviour (because we must have 
>dns configured in /etc/nsswitch.conf)?
>
>Note that the connection to the mail relay and the DNS server are ok.
>
>regards
>
>Bernd
>
>  
>


-- 
Bernd Schemmer, Frankfurt am Main, Germany
http://home.arcor.de/bnsmb/index.html

Mas temprano que tarde el mundio cambiara
                        Fidel Castro
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