Bowie Bailey writes:
On 10/20/2010 5:51 AM, Matus UHLAR - fantomas wrote:On 19.10.10 15:21, Bowie Bailey wrote:I have one user who occasionally sends email broadcasts to their entire contact list. At the moment, there are 37 emails from this customer in my queue with a grand total of over 5000 recipients.The problem is that these emails are monopolizing Courier. I have a couple of emails in the queue that have been there for over 5 hours without a single delivery attempt. Is there a way I can prevent this from happening? Is there a way to temporarily put these messages "on hold" to let the rest of the queue be delivered?see queuelo, queuehi, queuefill options in "man courier". I think tuning them could do what you want.This looks interesting. My mailserver (apart from this one user's occasional email broadcasts) is fairly low volume. Even with everythinggetting backed up yesterday, I only saw about 75 messages in the queue. So queuelo and queuehi don't really come into play.What is the behavior if the queue size never goes above queuelo? How often does Courier check queuelo and attempt to refill the memory queue?
If the queue size never reaches queuelo, everything is tracked in memory. I think.
Since I have plenty of resources to spare on this machine, should I decrease queuefill?
I don't think this would make any difference. As I understand it, you had a massive number of messages that got dumped into your queue. That's it. Anything that was added to the queue afterwards takes a back seat. Older messages take priority, and won't be dealt with until the older messages are done. Now, if the older messages' delivery attempts failed and were rescheduled, they should get rescheduled after the newer messages, so the newer messages should eventually be gotten around to, before the messages to be retried.
But as far as I understood you, you just had a bunch of messages dumped that took up all your bandwidth. That's all.
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