> One recipient per SMTP session, or chunks of 20 or 30 > recipients per SMTP session?
I send 200 with 1 minute intervals-- which works for the first 5000.
When it starts screwing up, what is the size of the queue?
I also just adjusted the smtp connections from 30 to 100-- I will see if that will crash windows or help.
it might help.
> The specific problem appears to be Imail queue manager, or > whatever it is running the Imail resource allocation show, > when it gets hit with big spikes of incoming mail, just like > you're doing.
I also put back declude.exe as the smtp, so the overflow folder is created- which supposely helped the flow?
keeping any one directory small, esp with 5000 to 40k msgs, is always a good idea.
But I pulled declude.exe because it was VERY slow in putting the mail back in spool.
it probably knows too fast arrives very soon. I have a client who is moving 2 or 3k msgs into the queue from a backup directory, and it really slows Imail down, Imail starts refusing inbound connections.
That again is hard to figure as the first 5k get sent.
you obviously hitting some kind of threshold that you have to stay below by throttling your sending to Imail.
are you saturating the outbound WAN link? that will screw up IMail and DNS, giving tons of timeouts and cause re-transmits.
Len
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