Hello. Thanks for the reply.
So there is not just the log for the email consent ...
In Italy the email issue has always been very protected, now the GDPR legislation in this regard follows that which existed in Italy even before.
When an email arrives from a forum it means that the forum has been authorized to send it.
Authorization takes place with flags on the control panel or when a new reply is inserted in a topic ... so the user is free to enable or not. And this is perfect for GDPR because one is free to opt-in and opt-out.
But the GDPR expressly speaks of demonstration of consent. So when a forum sends an email, and has been authorized to do so, it must be able to show that it was the user who opted-in.
And to prove this, in Italy on all the sites we are putting the logs on all the consensus flags

I do not know if in other countries the interpretation of the regulation is less rigid, but this is very important. I think it's very important for everyone ...