When using iMessaging on an iPhone6, why does the same contact show up as blue (message will deliver via iMessage) when I send to her email but greeen (message will go as SMS) when I choose to send to her mobile phone number?
When using iMessaging on an iPhone6, why does the same contact show up as blue (message will deliver via iMessage) when I send to her email but green (message will go as SMS) when I choose to send to her phone number?