So many times ... I've been running email servers for over 20 years.
Some of them also have no way to be retracted.
I've submitted a support request to my ISP, I don't suppose they'll pay any attention to it but you never know.
Its not clear what RBL they use, so if I find out I'll let you know.
Thanks anyway.
Well since you know what an RBL is, you'd have to check the relevant ones to determine if it is still in the list or not.
I don't keep track of them once I fail to be removed, so it would depend on the domain.
There are a number of search pages like
https://multirbl.valli.org/ but again I don't bother to expend effort on them after any initial attempts.
There are also a lesser few that I block for other reasons, but it would of course depend on the actual domain.
Thanks again for your help.
I had a response back from my ISP and they flatly refused to unblock your domain from sending emails to their mail servers.
Just simply saying it was not possible to whitelist your domain as it was listed on too many blacklists.
I'll get around to setting up another email address with a different provider and go that route.
G.