I capture all their email in Zendesk, that lets me keep all correspondance related to specific tasks in one ticket, I haven't looked at integrating it with a pr

I capture all their email in Zendesk, that lets me keep all correspondance related to specific tasks in one ticket, I haven't looked at integrating it with a project management tool, but there are a number of offerings in the Zendesk marketplace. I'm grandfathered onto a very good value Zendesk plan, so I can't speak to the cost/benefit for someone who signs up today.