MMS are received, but my phone operator doesn't think to believe so

[CelianGdfrd]

Checklist

• [x] I can reproduce the bug with the latest version given here.
• [x] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• [x] I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• [x] I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• [x] I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• [x] This issue contains only one bug.
• [x] I have read and understood the contribution guidelines.

Affected app version

1.1.4

Affected Android/Custom ROM version

Android 15 / LineageOS 22.1

Affected device model

OnePlus 7T Pro

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

1. Receive a MMS

Expected behavior

MMS should be received, and that's it.

Actual behavior

MMS are received, but several days later, I receive an SMS from my mobile provider, saying that I didn't receive the MMS correctly, and inviting me to read it online.

Screenshots/Screen recordings

No response

Additional information

Mobile provider is Bouygues Telecom (France)