"Message Not Sent" to only one contact

[C_Bax]

Hi

I have a problem that text messages wont send to just one contact, I receive texts from them ok and all other contacts are fine, this one is fail after fail after fail!

Any advice appreciated.

 

[GSDer]

Are you using the stock Messaging app?
Is the one contact an iPhone user?

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM -0.001 using Tapatalk Pro