Sep 23, 2020 · It could also be caused by a blacklisted server. The bounceback message will have this error in the subject, and the body of the message should contain the original message that was attempting to be sent. If you know how to review these emails, they will typically tell you what the issue was. Jul 18, 2020 · First, open the Settings of your iPhone and tap on the Sound and Haptics option. Then, on the Ringer and Alerts section, make sure that the volume level is not muted or set to a minimum. Now, on the Sound and Vibration Patterns section, tap on the Text Tone option. Finally, choose a default tone which is Note. Jul 03, 2019 · Enter the recipient’s number, message text, specify the date and time (or delay) of sending. If desired, set the frequency with which to repeat the action. Click on the check mark in the upper right. No need to reply to unimportant incoming SMS messages. Create an auto-reply text message and respond automatically without lifting a finger.