Kevin wrote:
> Dave Emory wrote:
>> Hello, All.
>>
>> I did some testing of the IP address number-of-connections limit
>> function, and found a behavior that you should be aware of if you
>> use this function. The mailer I used to send the test messages makes
>> a new connection for each email address in the "from" field. If the
>> number of recipients in the from field exceeds the max SMTP ip
>> connections limit, the IP address will be blocked and get a PB score
>> (if enabled). Blocking starts as soon as the limit is exceeded, so
>> some mail will not be delivered. I reduced the frequency test
>> duration due to this issue so the function still helps prevent
>> denial-of-service, but mail isn't blocked for the default 3600
>> seconds.
>
> Thats a pretty shitty MTA if you ask me.
> Most MTAs I've seen will re-use the connection for multiple messages.
> Sounds more like a script thats sending out messages directly to me.
>
It was yahoo mail. I don't have accounts on any of the other free ones, so
it's what I used. For the test, I just sent a message to 6 of my own
addresses.
Dave
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