Resolved -
Please continue to monitor Slack's statuspage for any updates related to message deliverability: https://slack-status.com/
May 27, 16:16 PDT
Monitoring -
Slack has reported messaging, and app degredation on their platform that could be impacting deliverability of Slack messages. This is a downstream provider issue and can be monitored on Slack's statuspage: https://slack-status.com/
May 27, 16:06 PDT