Thanks Dimaligragis 🙂

Now that you say that, I should remake the question in a different way if you dont mind

I dont have on my hoster yet any email service related to this domain, so that in Wordpress I have a "normal personal Yahoo email" where I do get my message....

Is that able on its own to send emails? It shouldn't, correct?. But on the other hand, the registrations email I am receiving them

*Do you understand the question? Thanks

Using gmail or yahoo mail is highly unreliable (when used as massive smtp for a hosted script). You should not do that.

What kind of hosting service is that, that doesn't provide email (smtp/pop) services?

The hosting its really topclass its only that I got several websites, therefore several emails configurations... and to be honest, the setting up of emails in the hosting its not so straight forward, at least its not for me

Also, I was wanting to get the replys (I suppose would be more professional for the emails sent ) on my personal yahoo email address to be honest to make my life "easier"

I think I should give it a try anyway but really dont look forward to

Is this the only reason really you could think of could be the problem?

Yes you have said that "top class" many times, still there is no hosting company that doesn't provide email (smtp/pop) services that i know.

If you have email issues, check Wordpress smtp plugins with extended logging. The logs provide all the information you need to debug.

Not an wpForo issue.

The only thing wrong is lack of knowledge issues myself Dimalifragis 🤣 and any task becomes a huge barrier to cross 🙂

If you say and you are certain its not a wpforo issue that a step/advance enough for me to look elsewhere for the problem, thanks 🙂