If I understand you correctly, what you need to do is to add
accept domains = @mx_secondary
somewhere in your RCPT ACL.
vlad f kropachew wrote:
> hello everyone. can exim relay mail as backup mx for domain which hase
> the domainx MX record point to it? with no additional configuration of
> domain list of cose. something like postfix futures
> 'the.backed-up.domain.tld'.
--
Kirill Miazine
mailto:km@krot.org
http://km.krot.org/