iPhone 15 unable to send MMS messages

I cannot send mms messages on my iphone 15. Latest os, everything else is as should be. I constantly get error message to enable mms messaging. I followed the instructions and found that it was already enabled, so unticked it, turned phone off and on, re enabled mms messaging. No change. I have reset 'network settings' checked viurs scan etc. I have recently returned from o/s where I used an e-sim. I have deleted the e-sim and I seem to think that this issue arose at that time. Could this be the issue?

iPhone 15 Pro, iOS 26

Posted on Nov 25, 2025 10:39 PM

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Posted on Nov 26, 2025 12:42 AM

Your MMS stopped working because deleting the overseas eSIM likely corrupted your carrier APN/MMS settings. To fix it, refresh carrier settings, manually check MMS APN, ensure your physical SIM is the active line, toggle iMessage/MMS settings, reset message routing, and ask your carrier to re-provision MMS if needed. This is a common and easily fixable issue.

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Question marked as Top-ranking reply

Nov 26, 2025 12:42 AM in response to dublediff

Your MMS stopped working because deleting the overseas eSIM likely corrupted your carrier APN/MMS settings. To fix it, refresh carrier settings, manually check MMS APN, ensure your physical SIM is the active line, toggle iMessage/MMS settings, reset message routing, and ask your carrier to re-provision MMS if needed. This is a common and easily fixable issue.

iPhone 15 unable to send MMS messages

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