• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
MMSC address explained for UK networks
| Step | Action | What It Fixes |
|---|---|---|
| 1 | Check your network network status | Confirms if issue is network-wide |
| 2 | Toggle aeroplane mode on/off | Re-registers SIM on your network network |
| 3 | Restart your phone | Clears temporary network errors |
| 4 | Check your network APN settings | Fixes incorrect data configuration |
| 5 | Re-insert SIM card | Fixes poor SIM contact issues |
| 6 | Contact your network support | Resolves account or SIM faults |
MMS (Multimedia Messaging Service) lets you send picture messages, video clips and audio files as text messages. To send and receive MMS on your mobile network, your phone needs the correct MMSC address, MMS proxy and MMS port values configured in the APN settings. Without these, picture messages may fail to send, download or appear as empty boxes.
Enter MMS fields exactly as shown — the MMSC must start with http:// not https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
MMS proxy and port settings explained
Go to Settings → Connections → Mobile Networks → Access Point Names. Tap your existing your mobile network APN or create a new one. Fill in the MMSC field, the MMS Proxy field, and the MMS Port field with your mobile network values. Make sure the APN Type field includes mms (for example: default,supl,mms). Save and restart.
Enter MMS fields exactly as shown — the MMSC must start with http:// not https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
Why MMS fails when WiFi is on
On iPhone, MMS settings are part of the mobile data network settings at Settings → Mobile Data → Mobile Data Network. Scroll down to the MMS section and enter your mobile network MMSC, MMS Proxy and MMS Max Message Size values. Tap the back arrow to save.
If the MMS section is missing on iPhone, go to Settings → Messages and make sure MMS Messaging is toggled on. If it remains greyed out, your iPhone carrier bundle may need updating — contact your mobile network.
Enter MMS fields exactly as shown — the MMSC must start with http:// not https://
Requesting MMS settings from your UK carrier
Picture messages not sending: Check that mobile data is turned on (MMS requires mobile data even on Wi-Fi). Verify the MMSC address and MMS proxy are correctly entered. Make sure the APN type includes mms.
Picture messages not downloading: Tap the message to manually trigger a download. Check your mobile data is enabled. Some messaging apps require you to enable Auto-retrieve MMS in their settings.
MMS working but blurry: This is usually an issue with the sending device compressing the image. Ask the sender to use a different messaging app. WhatsApp or iMessage may give better quality for image sharing.
Follow these steps in order — most issues are resolved by step 1 or 2
MMS on your mobile network vs iMessage/WhatsApp
Standard MMS is limited in file size (usually 300KB to 1MB) and compresses images heavily. For high-quality photo and video sharing, use iMessage (iPhone to iPhone), WhatsApp, or Google Messages with RCS enabled. These apps send over internet data and do not use MMS compression.
Frequently Asked Questions
Why are my your network MMS not sending?
Do I need mobile data to send MMS on your network?
What is the your network MMSC address?
Why are MMS settings greyed out on my phone?
Can I receive MMS without setting up the APN on your network?