For the most part being on blacklists should not affect day to day internet activities. Lets look at the ones you are on.
Policy Blacklists: These are IP addresses that either shouldn't be, or aren't believed to be running email servers.
These lists do not identify sources of spam.
Most IP addresses that are on these lists are there simply because they are residential IP addresses. It is normal to be on these lists.
Some blacklist providers run several different types of blacklists. The aggregate zone allows all lists to be checked in one go as the result here matches the result of the list you are on.
dnsbl,sorbs.net - is one such zone. In this case you are on this simply because you are on dul.dnsbl.sorbs.net
The above entries can be ignored then.
Of more concern is the last entry:
Being on this list often indicates that traffic has been seen that strongly suggests that one or more devices on your network has been compromised. If you believe this to be in error, you can ask for a de-listing on the site itself. BUT if your IP address appears back in there then you really need to have a look at EVERYTHING on your network. This would include things like Kodi boxes, firesticks, third party routers (NOT the VM Superhubs), printers etc.
The only blacklist you should be concerned about is cbl.abuseat.org
Being on the other three is normal for a standard residential connection.
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For some reason I am not getting email notifications about replies on the forum despite ticking the box.
I use Outlook as my email client and I cannot send emails, through a process of elimination and reading about this on the internet I have discovered that my IP address is blacklisted.
I have had some very helpful tips from other users of the forums but haven't been able to resolve things as yet due to work commitments in the build up to Christmas but will be looking into things further in the next few days.