Hello,
WIth a recent customer, they set up a marketing campaign for their Welcome Email to 24,073 of their customers. Upon sending it, only 768 emails sent and the email campaign showed as 'failed.'
In order to nudge this along, I was able to click the 'Retry' but the site would take 4-5 min to try and send again, and then produce a system error. After logging into backend again, I'd see approx 1000 more sent each time after I retried. It took most of the day to get through sending all emails with this process.
I took this to our CTO, Scott Forsyth and he could not find any reason for failure in the logs. Any thoughts on why the site could only send small batches at a time?
(Site version 9.10.17)