MMS not sending in Messages
iOS 14.4 on my iphone and Big Sur 11.2.1 on a new M1 MBP. Have previously been successful sending MMS/SMS to an Android user but this morning I get "Cannot Send Message , MMS needs to be enabled". IT IS ENABLED.
I have followed all the steps I've been able to discern from the many sites that address this issue but with no success. (turning off, turning on, restarting,). Any advice appreciated.
Dads MacBook Pro 13", MacBook Pro 13″