On 5/6/2010 9:16 AM, charles wrote:
/dev/rob0 wrote:
> On Thu, May 06, 2010 at 07:37:00AM -0500, CT wrote:
>> I do believe this is a relatively simple issue to solve. but
>> haven't found it yet..
>>
>> *my-relay* = internal relay
>> *master-relay* = internal and external relay
>>
>> Setup
>> Sending host => *my-relay* => *master-relay*
>>
>> relayhost = master-relay
>>
>> Looping issue..
>> When the *master-relay* sends *my-relay* a bounced message *my-relay*
>> sees the destination and then sends it back to the *master-relay*.
>>
>> I want my-relay to "receive" *all* email from the *master-relay*
>> and dump it into the Postmaster (alias) mailbox instead of sending it
>> *back* to the *master relay*..
>>
>> What would be the best way to do this.?
>
> I think it is simple too. Solve it outside of Postfix, in the MUA
> and/or mail-sending software. Set the sender domain to be in your
> $mydestination, and the localpart to be a valid local(8) user or
> something in aliases(5). Then when a bounce comes from the
> master-relay, your Postfix will know what to do with it.
>
>> here is the postfinger output..
>
> Munged beyond all possible usefulness. Mail routing issues tend to
> require real domain names to diagnose properly. Please also include
> logs if you think you need to post again.
>
>> -- postfinger output --
> [snip]
I should have stated, I have no control over the sending hosts in the
trusted networks, subsequently *most* are *send-only*and in most cases
do not have an internal or external DNS or MX record.
The master-relay is a "required" setting as it does all the filtering,
my-relay is a legacy service that needs to stay in place due to several
necessary static mappings in the transport file that can not be entered
on the *master-relay*.
There is only 1 SMTP admin for the *master-relay* (actually there are 3
masters) and I want to do my part to fix any *send-only* hosts that use
*my-relay*.
I do finally get the bounced messages but only after "too many hops".
You can use a check_sener_access map with something like
<> REDIRECT postmas...@localhost
or whatever the local postmaster address is.
Beware: This will catch all null-sender messages and has the
potential to break other things.
-- Noel Jones
