Red exclamation mark at messages

Hey there senesh80,

We'd like to confirm, does this happen with all messages or specific message thread? Also, if you haven't already, use the steps below to help:

If you try to send a message and you see  with an alert that says Not Delivered, follow these steps:

1. Check your network connection.

2. Tap , then tap Try Again.

3. If you still can’t send the message, tap , then tap Send as Text Message. Messaging rates may apply. Contact your carrier for more information.

You can set up Messages so that it automatically tries to send messages as an SMS when iMessage isn't available. Go to Settings > Messages, and turn on Send as SMS.

If you still need help

• Try to restart your iPhone or iPad.

• Check your network connection. To send a message as iMessage or MMS, you need a cellular data or Wi-Fi connection. To send an SMS message, you need cellular network connection. If you turn on Wi-Fi Calling, you can send SMS messages over Wi-Fi.

• Check with your carrier to see if the type of message you’re trying to send, like MMS or SMS, is supported.

• If you’re trying to send group MMS messages on an iPhone, go to Settings > Messages and turn on MMS Messaging. If you don't see an option to turn on MMS Messaging or Group Messaging on your iPhone, then your carrier might not support this feature.

• Make sure that your device has enough space to receive images and videos.

• Make sure that you entered the correct phone number or email address for the contact.

If you can't send or receive messages on your iPhone or iPad - Apple Support

Should you need additional help, Contact Apple Support.

Take care!