I timed it this evening.
I scheduled a post to publish in to the #Announcements category at 18:30.
At 18:40 there were 15,000 emails in the Scheduled queue.
At 18:45, so 15 minutes after the post, there were 22,000 emails in the Scheduled queue.
At 18:48 those emails then gradually started moving over to the Enqueued queue:
At 18:51 they were still moving over:
At 19:03 the emails were on their way out:
By 19:10 there were just 10,000 emails remaining:
At 19:27 there were just 569 emails remaining:
And at 19:29 all the emails had gone out:
So there we have it, one full hour to send 22,000 email notifications.
Can anyone help me identify the bottleneck here?
I’d very much like to be able to send these emails out faster than their current 22000-per-hour rate.