| List name | Post address | Description |
|---|---|---|
| itsm | itsm@lists.otrs.org | OTRS::ITSM User questions and discussions |
| otrs-de | otrs-de@lists.otrs.org | User questions and discussions about OTRS.org in German |
| otrs | otrs@lists.otrs.org | User questions and discussions about OTRS. |
| Sirios-announce | sirios-announce@lists.otrs.org | |
| Teamb | teamb@lists.otrs.org | TeamB Distribution List |