Terry Carmen <[EMAIL PROTECTED]> wrote:

> Sahil Tandon wrote:
>> Linux Addict <[EMAIL PROTECTED]> wrote:
>>
>>   
>>> Steven King wrote:
>>>     
>>>> Postfix is very cautious about system resource usage. It keeps an eye on
>>>> RAM usage, disk space, and CPU usage.
>>>>
>>>> I battered my postfix server with 200K mails once. Just for a stress
>>>> test. The load on the server went up sharply and was a bit sluggish but
>>>> postfix chugged along through it with very little impact to other
>>>> services running on the system.
>>>>
>>>> Linux Addict wrote:
>>>>         
>>>>> We have a java mailer application which was hung and queued more than
>>>>> 100k mails. People are working to fix it. I am worried that all 100k
>>>>> mails may hit postfix server and cause some damage.
>>>>>
>>>>> Anyway I can prepare for it?
>>>>>
>>>>> ~LA
>>>>>         
>>>>         
>>> Thanks! I am not just worried about the system performance, but possible 
>>> blacklisting as it may send flurry of mails to external domains.
>>>     
>>
>> If you're really worried, you can parse the queue for large amounts of
>> messages heading to the same external domain and release the associated
>> QUEUE IDs slowly.  Bit of a crude option, but one you might consider.
>>   
>
> I'm not sure that would be helpful. One of my IPs got throttled at Yahoo 
> for sending exactly two messages that looked spammy (but actually weren't).
>
> The OP will probably have to take his lumps and fix it later.

Yahoo! is especially atrocious in this regard and considers almost any
frequent sender as spammer unless the server is whitelisted.  I only
have anecdotal evidence to back that up, so I am sure some will
disagree.

The advice was disclaimed as "crude" for a reason. :-)  It's no panacea,
but it should help on the margin.

-- 
Sahil Tandon <[EMAIL PROTECTED]>

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