blacklisted

Can you be more specific as to what your question is, and what result you desire?

We need more info.

But... There is a limit for this operation in Chrome, so you just need to wait.

Anyway I gues you are reffering to this. Please, check this out.
https://www.voog.com/blog/how-to-remove-your-website-or-web-page-from-google

my local email server is been blacklisted by CBL and I can 't removed it its almost 48hrs now .
 212.60.70.174 is the ip address.

Are you referring to the message you received when you looked up your IP here https://www.abuseat.org/lookup.cgi?

yes you right

I have scan all the computers and I have check all the sitting on the firewall,  but they still do not unblock me .

See my previous comment above.  They won't allow unblocking until they are satisfied that the problem no longer exists.  This might take a few days, but I've heard of it going as long as a month before allowing unbanning if they deem the situation to be severe.

so there is nothing I can do about this right ?

Call your ISP provider now. Explain the situation. The next move is on him.

On the contrary.  You must take all the steps that the CBL recommended, disconnect the machine from the internet, inspect all access to the machine, read through the logs, stop all outgoing use of that email server, sweep it for viruses using at least two different antiviruses, run Malwarebytes on it at the highest sensitivity, run Spybot - Search and Destroy on it at the highest sensitivity, change all account names and passwords, reset the encryption keys, and that's just a good start.  Figure at least three 8-hour days of work ahead of you trying to figure out what the problem is.

Of course, we don't have the entire picture here and we don't know why the ban occurred.  Possibly you or somebody at your site was deliberately sending unsolicited commercial email through that server.  If that's the case then nothing is going to get it unbanned because as soon as it gets unbanned it'll get banned again, and after a couple of times the ban will become permanent.

okay if they can change the ip address right.

okay if they can change the ip address right.

That's not fixing the problem... The new IP will eventually get blocked too if the matter is not resolved

I have done a full scanning on my network which I think if they unblock me they will not block me again

do you allow user devices to connect to your network? The issue might be related to other things.

Block outgoing port 25 connections on your firewall with exclusion allowing your mail server only.
If you have multiple public IPs, breaking it in a way that the mailserver is using its own public ip deals with if you have users who click on things or potentially access and relay message that gets caught ..
CBO also adds IPs based in bot activity.

No further input from requester.  Question is worth keeping for archival purposes.  Most experts weighed in with apposite comments addressing the situation.  Points assigned according to perceived magnitude of the contributions.