Setting gateway

[Julian Field]

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Steve Freegard wrote:
> Hi Juan Pablo,
>
> Juan Pablo Lorier wrote:
>> Hi Martin,
>>  
>> Thanks for the answer, but I've already done that. I still don's know 
>> if it's working because I can't get mail to enter the server to be 
>> scanned and send to the mail server because as there are no user 
>> accounts for sendmail un the mailscanner gateway, it bounces the 
>> mails with the error user unknown.
>
> This is being caused by the following possible reasons:
>
> 1)  The hostname of the machine is the same as the domain (BAD!) so 
> sendmail thinks all the mailboxes are local (which don't exist).
>
> 2)  The domain is listed as an alias of the machine (e.g. 
> /etc/mail/local-host-names on a RedHat system) causing the same issue 
> as above.
>
> 3)  You haven't configured Sendmail to relay messages for this domain 
> correctly.
>
> You should have added a 'mailertable' entry for the domain e.g.
>
> domain.com    esmtp:[ip.add.re.ss]
>
> And defined told the access-map that relaying messages to this domain 
> is permissible:
>
> To:domain.com        RELAY
>
> And you should make sure that you remembered to build the database 
> files for both access and mailterable by running 'make'.
>
> Running:
>
> echo "3,0 email at domain.com" | sendmail -bt -d0.10
>
> Should show what sendmail thinks it should do with the message (look 
> for esmtp or smtp on the last-line, local is incorrect).
sendmail -bv email at domain.com
is rather shorter :-)
>
>> As I see it, it's not clean to set every user both in the gateway and 
>> in the mail server, so there should be two options:
>> - have sendmail not to check for user existence and just accept the 
>> mail and forward it to the mail server
>> - have sendmail to use the same LDAP database that the mail server.
>>
>> I prefer the first for less complexity and to avoid another point of 
>> failure.
>
> This is a separate issue.  Get the above working first, then start 
> looking at the various milters for Sendmail that can do SMTP 
> call-ahead recipient verification (milter-ahead, smf-sav, mailfromd 
> etc.).
>
> Kind regards,
> Steve.
>
> -- 
> Steve Freegard
> Fort Systems Ltd.
>

Jules

- -- 
Julian Field MEng CITP CEng
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