Reply to notification mail on authenticated mail instance

[Pedro Santos]

scenario:

Outgoing mail with authentication (Microsoft Exchange 365)-> general@jira.com

JSD project with their customer mail set > project@jira.com

a) JSD project notification mail is set >project@jira.com

When an issue is updated for eg, a notification mail should be sent.

Mail is not sent as there's no outgoing authentication for that address (only general@jira.com is authenticated)

b) JSD project notification mail is left as default (general@jira.com)

The customer want to add a comment so he replies to that email

That reply is not processed since there's no incoming handler for that address

Am I missing something, or does authentication makes it impossible to comment issues with email replies?

Some projects works based on customer mails so this make it unusable