On 2021-11-19, russellbell--- via Exim-users <exim-users@???> wrote:
> 'IP addresses are not domain names.
> Yes. I meant to say that it's a valid address.
ok
> 'They can not have MX records.'
> Why not? If an SMTP server at the address handles mail...
then it dosn't need an MX record.
> 'If there is any domain name that has an A record pointing to
> 123.456.789.012, it is likely to work much more often than using the
> IP address directly, even if it has no MX record.'
> There is an A record, but there's also an MX record that
> points to our mail server, a Microsoft Outlook thing: mail sent to it
> won't arrive at the target server.
one way to avoid the need for ip literals is to make another MX record
(on a sub-domain) that points to the A record for this IP
> Quoth Jasen Betts: 'You probably need to configure
> [123.456.789.012] as one of the domains that exim accepts for.
> In host_accept_relay ?
could be local_domains (depending on how different your config is)
> 'you may need to enable IP literal domains too.'
> Does local_domains_include_host_literals do this?
Exim documetation says: allow_domain_literals, I don't know where that
one comes from.
--
Jasen.
