Justin Willmert wrote:
Alexander Dalloz wrote:
Am Do, den 22.12.2005 schrieb azeem ahmad um 16:23:
i got a question n i studied for it but couldnt get satisfied
the question is
how sendmail server comes to know which domain it belongs to
i mean if there is a server mail.example.com
then how mail comes to know that it belongs to example.com domain
Regards
Azeem
You have to tell Sendmail which domains have to be treated as local -
class {w} - or relay - class {R} - domains in a) local-host-names or b)
in relay-domains.
Alexander
That is also what the MX record in a domain's DNS is for.
The MX record tells MTAs where to send mail for the domain. The mail
server configuration files (e.g. /etc/mail/local-host-names for
sendmail) tell the server which domains it should accept mail for.
Mismatches between the two usually result in "Relaying denied" type
rejections.
Paul.
