This happens multiple times now, but not on every thicket.
The customer opens a tickets by sending an emails to support@comapny.com. We see the ticket and answer it via the FreshDesk/Tickets screen using the Reply button.
So far we have answered around 1000 tickets this way and it worked just fine.
In the last month we are having the problem, that customers do not get our replies via email and they call us and ask why we do not reply. The same customer gets some emails and does not get others. And when we open the ticket we can see the reply, but customers do not see the email in the inbox they also check spam-folder.
Is there a way to see what emails has been sent to the customer, some kind of an email lgo? So we can send to the customer to ask him to check their emails?


