We have put together a short survey to capture your feedback in terms of what BT can do when you experience home Wi-Fi issues. We would appreciate it if you could take a couple of minutes to complete a short survey. Read more from here, Fix my home Wi-Fi
I tried to send an email on a mailing list but a message popped yup telling me that one of the addresses is no longer valid. However, it didn't tell me which one, and the message couldn't be sent. How can I resolve this please?
Solved! Go to Solution.
Keep halving the list until you find the culprit.
If there's 50 in the list, send to 25. If it sends the rogue is in the 25 you didn't send, if it doesn't its in that 25. Send to 12 etc etc etc
I presume you weren't trying to send more than 49, as that is the limit you can send at once.