>> I am secondary MX for 2 domain. >> I store there mail in bsmtp format and then they get to there final host by
>> another mean.
>>
>> when i send a mail from my host runing exim to thoses domain,
>> i would like the mail to first try to be sent to the primary MX, and if fail
>> store it in the bsmtp file.
>>
>> Thanks to Nico Erfurth for the help about how to try only once.
>>
>> I am trying not to have the primary MX name coded in a file when routing the
>> first time for thoses domain.
>> So i would like to do a dnsdb query extracting the list of the primary MX host
>> to feed the route_list option.
>>
>> how can i do that ?
>You can use the normal dnslookup-router, it will prefer the
>primary-mx for deliveries, but the two domains must be listed in it.
I can't do that because a loop can result (i'm using the same config file on all
the 3 host), the differant secondary MX can bouce to each other the mail.
so i realy need to get the list of MX with the highest priority, or at least,
the list of MX with higher priority than the host runing exim.