When a customer sends an email request, they receive an email confirmation from JIRA. When I add a public comment via the 'Reply to customer' button, the customer receives an email notification with the added comment. If the customer replies to the email, a new comment is added to the JIRA ticket. Everything works fine until I reply to the customer and include an attachment in the comment. As soon as there is an attachment (e.g., a PNG image or PDF), I can see the comment added in the JIRA ticket itself, but the customer does not receive an email notification. If I add another comment without an attachment, the customer again receives a notification.
Everything is set up correctly because notifications work in general. The only issue is with attachments. I have also checked the 'Customer notification logs,' and there is no log at all.
It is really annoying because I expect the customer to receive an email, and I am awaiting their response. After three days, we realize they have received nothing. Actually, I expect a notification to be sent out as soon as I add a comment. If not, I need to see a notification that there is an issue.
Any suggestions?