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Mailserver more IPs

mdde

Regular Pleskian
Hi,

generally Question: In the past i had some servers with 50-100 Customers and some Resellers.
Often there was times where i could find my IP on Blacklist from Cloudmark for example.

How can i prevent that? Can i use some IPs only for Resellers?
Is this also possible with ipv6?

Actually i have a Server with IPv4 & Ipv6, ipv4 is hard to get atm ..

Plesk 12.5
 
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