On Jan 13, 2009, at 11:51 PM, Pieter Donche wrote:
$ host -t MX macos.cmi.ua.ac.be
returns no answer
It is recommended to configure MX records for the domains in DNS, but
mail will fall back to using A records if no MX records exist.
But, when I try from host1
$ telnet host2.domain.topdom 25
telnet: Unable to connect to remote host: Connection refused
Op host2.domain.topdom I see sendmail is running:
host2: $ ps -jaxw | grep sendm
smmsp 816 1 816 816 0 Is ?? 0:00.02 sendmail:
Queue run...@00:30:00 for /var/spool/clientmqueue (sendmail)
root 812 1 812 812 0 Ss ?? 0:00.01 sendmail:
accepting connections (sendmail)
What's wrong? Why does this not work out of the box ??
Given the security history of sendmail, it's not prudent to enable
sendmail by default. Those two processes are the client mqueue runner
and probably a daemon listening only on localhost rather than on all
There is a minimum level of effort required to set up mail properly;
at the least, read /etc/mail/README and set:
...in /etc/rc.conf. I expect to deal with sendmail for as long as I
administer Unix boxes, but alternatives like Postfix in particular
would be my preference from a number of standpoints.
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