IPhone wont send pictures to non IPhone users
For the past couple of months I have not been able to sent picture messages to people who don't have iphones. I thought it was because a new update was coming soon. Once the update came and I downloaded it, it still was not working. I can send regular texts to people who don't have iphones but just not pictures. I have tried sending pictures to both people with iphones and without. I can send them to people who have iphones. Also, the ones who are non iphone users can't send me pictures either. And it's not just certain phones because I have tried with 3 different people who have different phones and different service providers. I have searched online and tried what other people have suggested but can't figure it out. All my settings seem to be fine. I have a 4s. Someone please help!!
iPhone 4S, iOS 6