I wonder if anyone else has had the problem of missing emails.
I sent an email to someone and they received it but I NEVER GOT THE REPLY. I checked all folders and I never received a reply to that first email. I then sent a similar message 2 weeks later and that time I did get a reply. They then sent me the proof that had sent the original message
The person I sent it to said the following: This seems to be very much an issue with btinternet, it has happened to many of our participants using their accounts. It must be some sort of automatic filter because the emails disappear without trace, I’d recommend contacting them and asking them to make sure it doesn’t happen again as you could well miss important emails because of it. In the meantime I will contact you through this email address instead.