From a UX point of view, when writing to a company email, should the company return a courtesy email (we have received your email), or not?
Email responses are also feedback, and as such, I'm guessing that companies that do respond have happier users, but are there studies? What should the return mail contain?
An example: Writing an email to an organization and they mail back that 'they have forwarded the email to the (incorrect) department'. A user can now choose to take action to get the email to the correct department, or wait until there comes a return mail. But at least he/she knows the email has been received.
Another example: I wrote an email to team@stackexchange and didn't receive any courtesy mail, however, about a week later I got an email with an answer.