Text messages sent to a phone offline are not delivered
My wife turns her phone off around 10 p.m. (we still have a landline to receive calls.) If one of our sons sends a text message when her phone is off, it is not delivered when she turns the phone back on the next morning. Her phone is a Google Pixel 3a and both sons have iPhones. One is one AT&T and the other on Xfinity Mobile (same account as our lines.) She could leave the phone on but it would be the same if we were on a multi-hour flight and the phone was in airplane mode. We never had this issue with our previous carrier. We are using Google Messages but it is the same with Textra.