New to OTRS, I've successfully installed an OTRS 3.1.21.

The mailbox fetcher is OK. All ticket I send to a configured mailbox are migrated into tickets.

However, I can find how to enable auto-response (on ticket creation, update ...).

Where are this options on OTRS 3.1.21 ?

Regards,

PS : I have created an auto-response (on admin interface) as auto-reply, but it seems not to work