Unfortunately it is also blocking incoming emails.
From my newsletter sending company:
We have checked and found that the emails to Btinternet domains are not getting delivered and they are getting error- "We are experiencing issues with the service, please try again later." and BT is not doing much on their side sadly from what we can see either.
Hi @ukwiz
It sounds like your issue may be slightly different. But I'd like to know more and see if I can get this passed over to the email team to look at.
I'll send you private message. Please check your inbox and get back to me when you can.
Thanks
Ali