On Thu, 2010-05-20 at 14:20 -0400, Dave Lugo wrote: > I've been asked regarding how much mail exim > can handle per day.
Ugh. Thorny question. > Are there any benchmarks out there that I can > look at? I'm not sure, but... > Yes, I know I can run my own (and I have); I'd > just like a few more data points if they're > available. ...the problem (for you, in terms of data) is that there is no "standard" configuration of Exim on a given "standard" piece of hardware. Exim scales pretty well and (like most MTAs) is usually limited by the hardware it runs on. Unfortunately it seems only the big boys bother to shell out time and money for SPEC tests (see http://www.spec.org/mail2001/results/ , http://www.spec.org/mail2009/results/mail2009.html ) and they throw some serious hardware at it. I think a more pertinent set of questions would be: 1. How many messages/day do you *want* to handle? 2. On what sort of, and how many servers? 3. What storage do you have available? 4. Do you need to relay (authenticated senders, for example)? 5. What format do you store lookup tables in? 6. How many users do you have? ... N. The Nth question. Probably "are you running inline AS/AV?", or something... and so on, and so forth. Unfortunately, as you can see, the answer to your original question is "it depends". I'm sure there are people on the list who can offer you some raw data from their systems, but given the infinitesimal likelihood of their systems being anything like yours, that data might as well be cheese :) FWIW at work we now deliver something like 60 messages/min when averaged over a year; we've dumped enormous queues after planned backend outages at rates well in excess of 10 times that without the servers getting overloaded. [caveat: Google now handle our student mail so our average load has gone down]. Sorry that's not a more definitive answer! Graeme -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
