On 22/08/05, Tony Finch <dot@???> wrote:
> > What is supposed to be Exim's behaviour a mail host has multiple A
> > records, and one of the machines is unavailable.
>
> It ought to immediately try the other hosts, in MX priority order, so
> long as there isn't an unreasonable number of hosts.
There is only one MX record, oxmail.ox.ac.uk. This name resolves to many
IP addresses, one of which is unavailable:
$ host -t mx ox.ac.uk
ox.ac.uk MX 9 oxmail.ox.ac.uk
$host oxmail.ox.ac.uk
oxmail.ox.ac.uk A 129.67.1.161
oxmail.ox.ac.uk A 129.67.1.163
oxmail.ox.ac.uk A 129.67.1.165
oxmail.ox.ac.uk A 129.67.1.167
oxmail.ox.ac.uk A 129.67.1.171 <-- this host is unavailable
oxmail.ox.ac.uk A 163.1.2.161
oxmail.ox.ac.uk A 163.1.2.163
oxmail.ox.ac.uk A 163.1.2.165
oxmail.ox.ac.uk A 163.1.2.167
> You haven't provided enough information about your problem message for me
> to be able to say anything useful. We don't seem to have any problems with
> ox.ac.uk from here.
The message itself is unremarkable. Exim is attempting to connect to
129.67.1.171, which times out.
2005-08-22 14:15:49 oxmail.ox.ac.uk [129.67.1.171]: Connection timed out
2005-08-22 14:15:49 xxx.yyy@??? <xxx.yyy@???>
R=internet T=remote_smtp defer (110): Connection timed out
Exim doesn't seem to retry any of the other IP addresses listed for
oxmail.ox.ac.uk.
regards,
John
