Why are MMS sent from the web/desktop/tablet not shown in my default SMS app on my phone?

This is a problem that appears when you use another default SMS app on your phone instead of mysms (Android > 4.4). In this case we are not able to insert the MMS in the database on your smartphone, which is due to restrictions of the Android operating system. So even though you’re able to send and receive MMS on any device, sent MMS from your desktop or tablet are not displayed in your default app on your phone.

Feedback and Knowledge Base