So earlier today after receiving a text I got an alert that said "Your sms mailbox is full. New messages cannot be received until you delete some messages." I didn't know the iphone had a limit and this really is pissing me off. I do not delete my text messages. So to summarize: 1. What is the limit on the number of texts 2. How can I change the limit. I have an iphone 3gs jailbroken on 3.0.