We are using O365 as our email integration and have Jira Service Desk configured to raise tickets based upon incoming emails to a specific mailbox.
We are using our own custom domain and we use Jira Service Desk for our external customers.
We are seeing intermittent issues whereby the support ticket is not updated when staff within our organisation or our customers respond via email to tickets.
When i view the email processing log, the replies are not showing up in the log at all.