MMS are normally already configured on your device. If you've changed the settings, or are having problems sending MMS, here are the settings to check.

Please note that you must send at least one MMS in Belgium in order to activate the service and be able to send and receive MMS abroad.

Access point name (APN): event.proximus.be
User name: mms
Password: mms
MMSC: mmsc.proximus.be/mms
MMS Proxy IP: 10.55.14.75
MMS Proxy Port: 8080

If you can't change your device's MMS settings, your device probably doesn't support the technology.