I'm using Russell Coker's postal software to stress-test our mail server.
But I can't squeeze more than 24576 messages per minute out of it!
This seems to be a limitation on postal's side as I can fire up another instance on another machine (or the same machine) and easily squeeze through another 24576.
[root@client test]# postal -m 32 -M 4 -t 256 -c 128 -r 0 10.0.0.232 user-list time,messages,data(K),errors,connections,SSL connections 14:21,13736,254013,0,416,0 14:22,25176,465690,0,358,0 14:23,24576,454808,0,352,0 14:24,24576,451941,0,375,0 14:25,24576,453869,0,376,0 14:26,24576,455206,0,385,0 14:27,24576,452850,0,356,0
Any idea if there's something else I'm missing or if there's something else I can change? After source-diving, I observed the throttling code doesn't even run when the rate-limit is the default (0), so it's not that.