Re: [exim] retry configuration

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Author: Catalin Constantin
Date:  
To: Graeme Fowler, Exim Mailing List
Subject: Re: [exim] retry configuration
We did change the retry rules.
This does not help at all.
Still delivery to Yahoo takes too much.

In my test case scenario with test.tld grey listing. Is this normal
behavior for Exim ?
Is this a bug ?

Should it be reported ?

Contacting Yahoo is not the issue here. We did that. They said they
will monitor it + some copy paste answers.
We comply with all their rules.

The issue is Exim retry policy.

Thanks again,

On Tue, Apr 21, 2009 at 12:09 AM, Graeme Fowler <graeme@???> wrote:
> On Mon, 2009-04-20 at 23:55 +0300, Catalin Constantin wrote:
>> With Exim the only issue is retry. It does not retry to deliver the
>> email soon enough.
>
> So... change the retry rules. If you have the defaults, they are:
>
>> begin retry
>>
>> # This single retry rule applies to all domains and all errors. It specifies
>> # retries every 15 minutes for 2 hours, then increasing retry intervals,
>> # starting at 1 hour and increasing each time by a factor of 1.5, up to 16
>> # hours, then retries every 6 hours until 4 days have passed since the first
>> # failed delivery.
>>
>> # WARNING: If you do not have any retry rules at all (this section of the
>> # configuration is non-existent or empty), Exim will not do any retries of
>> # messages that fail to get delivered at the first attempt. The effect will
>> # be to treat temporary errors as permanent. Therefore, DO NOT remove this
>> # retry rule unless you really don't want any retries.
>>
>> # Address or Domain    Error       Retries
>> # -----------------    -----       -------
>>
>> *                      *           F,2h,15m; G,16h,1h,1.5; F,4d,6h
>
> Run exim such that it runs the queue every 2 minutes and change the
> retry rule to something which suits you for yahoo.*:
>
> yahoo.com  *  F,6h,6m; G,24h,10m,1.4; F,7d,12h
>
> In other words: for yahoo.com, retry every 6 minutes up to 6 hours;
> after this retry at 10 minutes and then grow the interval by a factor of
> 1.5 up to 24 hours (giving 13 retries in the next 18 hours); then retry
> every 6 hours after the first 24 hours up to a maximum of 7 days.
>
> You can tune this. Perhaps, by default, Postfix does more (or less?)
> aggressive retries. Under normal operation I see nothing playing silly
> beggars with yahoo.* (or hosted domains such as btinternet) but every
> once in a while they do something that causes swathes of the Internet to
> get delayed.
>
> As an aside, did you contact Yahoo at all about this?
>
> Graeme
>


--
Catalin Constantin
Dazoot Software
http://www.dazoot.RO/ - yes Romania