Re: [exim] How can I customize exim mailer

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Szerző: W B Hacker
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Címzett: exim users
Tárgy: Re: [exim] How can I customize exim mailer
Bobby Shahzad wrote:
> I want to avoid retry situation. Basically our situation is that mails keep
> coming in to queue(through newsletter injector script) even if there is
> permanent block, we dont want such messages to sit in retry queue for 5 days
> , we just want them to be discarded at once because delivery is not going to
> happen any way. So what I want is, the first time there is a TS03 yahoo
> error, stop delivery of any future message to Yahoo
>
> how can we do it?


Short term:

Have a look at Exim's retry settings. You can customize those by destination.

Combine that with altered freeze/thaw times for a great deal of 'automagic' or
self-adapting flexibility. EG earlier than-default retry-quit with a failure
message back to the original sender may be more help than hindrance.

Unless the amount still left in the queue is rather massive, not a lot of harm
is done, so add a cleanup script of the sort Wash mentions only if still essential.

Longer term?

'Honor the threat' - don't just apply a band-aid.

IOW - see what you can do w/r improving the manners of that injector script,
insuring overall link reliability, checking message format as far as apparent
spammishness, insure your server has good credentials, perhaps look at
rate-limiting .... all so as to improve initial acceptance of the traffic.

If all of that is well-behaved, you shouldn't HAVE an accumulation in the queue.

HTH,

Bill Hacker


>
>
> On Tue, Oct 12, 2010 at 5:15 PM, Odhiambo Washington <odhiambo@???>wrote:
>
>>
>> On Tue, Oct 12, 2010 at 7:03 PM, Bobby Shahzad <ksj787@???> wrote:
>>
>>> Hello,
>>>
>>> My client wants me to setup exim so that if there are a particular bounce
>>> reason such as "yahoo TS03 permanent block" exim should stop sending mails
>>> to that ISP until the situation is back, which usually is after 48 hours.
>>>
>>> I have no clue how to do that in exim. Do I have to custom program exim
>>> and
>>> recompile it? any ideas what we are talking about here?
>>>
>>> Give me some clues please.
>>>
>>>
>> If Exim gets an error code = 550, it stops sending immediately and returns
>> a bounce to the sender. However, if the error is one of those temporary
>> ones, then Exim will retry sending the e-mail until (by default, based on
>> the default retry rules) 5 days is over.
>> In my opinion, I think you do not need to customize anything to achieve
>> your desire.
>>
>> --
>> Best regards,
>> Odhiambo WASHINGTON,
>> Nairobi,KE
>> +254733744121/+254722743223
>> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
>> "If you have nothing good to say about someone, just shut up!."
>>                -- Lucky Dube

>>