Mail error , doesn't send externally.

Just talked to the ISP , I was blocked 5 days because of spamming I've cleared the blacklist but i didn't think that ISP would block me so quick because I check the blacklist dailly.

The report was that 127.0.0.2 was spammig , Is this because of the server or a windows pc that's in the network with a virus do that ?

How can I make it more secure no to spam ? Thank you very for your suppot

 

That's hard to say. You need sample spam emails and look into the mail headers so you might find hints to the origin there.
I don't know any other easy ways to find out what exactly was the spam source.

Btw.: your provider doesn't need the blacklists. Providers get direct spam complaints from receivers, so it is of no help in this case if you clear them. Also it is not a good way clearing the blacklist without knowing the reason for the spam - if you do this regularly you won't be unblocked anymore.

 

Solved

Thank you very much for the support. It's a great community and keep up the good work .