Hi, we have an issue since we upgraded to OTRS 5. Previously it was possible to put a system address of otrs (e.g. email address of different queue) into the "To:" or the "CC:" field of outgoing emails. This was used to inform the agents of the other queue about different things. I know this should also be possible by splitting the ticket and assigning it to the special queue, but we have some special cirumstances. OTRS has a system address which is used to send e-mails but not to receive. The mailbox is used in MS Exchange for a group or team. They forward some of the answers to the otrs system if relevant, but customer replies should never be attached directly whithout beeing reviewed. Now we have the case, that some agents want to inform the people reading the Exchange mailbox, but this isn't working anymore. The error message is: EN: This address is registered as system address and cannot be used ... DE: DIese Adresse ist als Systemadresse registriert und kann daher nicht verwendet werden ... Is there a possibility to bring back the old behaviour? Thanks - Patrick