Mail delays are back: 4 hours
paul at anastrophe.com
Thu Dec 22 04:42:13 UTC 2022
On 12/21/2022 14:29 PM, Fred Wright via devel wrote:
> On Wed, 21 Dec 2022, Matt Selsky via devel wrote:
>> This is only a 2 minute delay, if I converted all timestamps to UTC
> My last post was delayed 11 minutes, which is longer than it should be,
> but not awful.
>> I did find that a spammer was abusing our Mailman instance's web
>> interface to send bounces via our gateways. I enabled
>> SUBSCRIBE_FORM_SECRET and that seems to have stopped the spammer for
>> now. I cleared the deferred mail queues and I'll keep an eye on it.
> Gary's post a while back about the humongous queue made me wonder if
> there's some misconfiguration where undeliverable messages are never
> timed out, leading to an ever-growing queue. I think the typical
> timeout is around four days. First-order, this should only cause a disk
> space issue, but if the code scales poorly to large queues it could also
> cause slowness.
At minimum, there should be some sort of out-of-band alerting to anomalous
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