You can try check this domain site "http://www.datapathltd.com" backend > Easyblog > setting > notification > Sender Email Address and see if you have set different email address when you compare with your SMTP setting?

Hello,
The email address is set to info@datapath.co.uk and when checking the SMTP settings in Joomla it is also set to the same email address. So where is recipient address coming from?

Thanks

Can you check this following places and see whether got this email "karen@brookstonewebandgraphic.co.uk" exist :

1. backend > Easyblog > Email activities

2. Backend > Easyblog > subscriptions

If it doesn't exist, can you update this domain site backend http://www.datapathltd.com login and FTP access so we can better have a check?

It appears under Email Activities. I have no active subscription so that section is empty.

I have attached a screenshot of the Email Activities

That mean this email account "karen@brookstonewebandgraphic.co.uk" is registered user?

Also can you update some screenshot regarding with your site Easyblog notification page (backend > Easyblog > setting > notification > all the tab)

Oh yes sorry karen@brookstonewebandgraphic.co.uk is a user. here is screenshot of notification area.

It would be best if you can turn off that "Send email on page load" setting since you already have setup cronjob on your server.

You can take a look this blog notification setting https://monosnap.com/file/5FcZzeyi84DZ0OfBama6HHlDrZGNGI and see which option you have enable it.

You can take a look why system notify this user account when the blog post published on the site.

Ha right I will get that turned off and see if it stops the notification errors

Alright, keep us update then.