How to link email responses in same issue

[Anna Zoucha]

Hi Atlassians,

My team has a workflow wherein we have to submit support requests to a third party vendor via their support portal. We get an emailed response that includes their support ticket number and I could use that to create a jira issue. However, we often have to go through several rounds of back-and-forth responses. I would like to group all of the communications into one ticket, but I have no idea how to configure that. Haven't found a lot of documentation that was helpful. Any ideas?