From OXIDwiki

OXIDforge requests

In case you experience problems or have questions concerning OXIDforge, you can reach us at community@oxid-esales.com.

Development issues

In case you would like to contact the OXID community to help you with development issues, please check out the forums, mailing lists and more.

Other requests

For all other issues such as purchasing an OXID product, professional support, et al., please see the OXID eSales contact details.