GMAIL not going to my BT address
 

I can send from my BT email to GMAIL. However when someone who has a gmail address sends an email to me it doesn't appear in either my inbox nor my spam folder. I've no idea where it has gone. According to the BT Q and A page I can add *@gmail as a safe sender but I believe that is only if they are going into my spam folder.
Any ideas anyone?
Thanks
H

Funnily enough I was speaking to a local safer neighbourhoods coordinator recently and she wanted to send me something from her Gmail address to my my bt address and mentioned that problem. I never received it... yet I'm setting up a computer/Gmail account for a relative and sent myself some screenshots from her account to write a few handy hints - received with no probs at all. Weird.

Microsoft recently changed the authentication protocols for Gmail if using Outlook. Maybe that's your issue. Certainly it caused me issues

My Gmail accounts have no problem with sending/receiving to/from BT addresses BUT I have been forced to use Outlook 2019 or higher AND IMAP protocol (instead of POP3) in order to continue using Outlook.

I'd strongly suspect those emails are triggering a spam block. The algorithms are complicated to say the least, and continually being adapted. It's certainly possible that they're being very selective about what gets stopped. Not necessarily for an obvious reason. Is there anything at all unusual about the email?

If you haven't already I'd log into the BT server and see if there are any alarms or alerts there under email management, and I'd ask the gmail sender if they were notified that their message wasn't delivered and if there was a reason given?

Otherwise, if you were one of several recipients and other people did receive it, can you get a copy of the delivered message from one of others? There may be a clue in the header about what your email provider choked on.

Failing that you could phone BT and see if they can see what happened. Make sure you have as much information as you can about when the email was sent to you and who from.

Moring Netstruggler. Thanks for that and sorry for late reply as I was away with daughter and grandchildren for a fortnight. I had them send me a number of emails from all sorts of addresses over a week or so and it suddenly and magically it stopped blocking the emails. I had a good look in blocked addresses and it wasn't there but all seems good now.