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Hello there. I have a kerio mailserver installed using various public blacklists (SORBS DNSBL, SORBS RHSBL, SPAMCOP...). I have a friend (using another server and another domain mail account) sending mails to me but our server is rejecting them because his server is in the SORBS DNSBL database. We tried to contact with the administrator of that server to tell him that his server is in the SORBS DNSBL database, but he is not answering.

I want to receive my friend's mails so i tried on my kerio mailserver to create a custom rule adding my friends domain and telling the server that from that domain the action to take is "Allow".

Sometimes, the server is accepting the mails and sometimes is rejecting them. I think my friend's server is a group of servers with a dispatcher. I think depending of the ip address of the server that manage the mail it is received or not because there must be some of their server ips in SORBS DNSBL. Anyway, I think my custom rule is not working or not working in the way I'd like.

Is possible to create a white list to some domains to override the blacklists? Thank you.

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Is possible to create a white list to some domains to override the blacklists? Thank you.

Yes it is possible to have a whitelist. But the whitelist must consist of IP addresses and can't consist of domain names.

On the Blacklist Tab, just add the IP address to the "Custom Whitelist addresses"

As a side note, why not add a Spam Score to SORBS DNSBL (for example +2) instead of rejecting the mail. SORBS DNSBL has sometimes false positives, the list is not too reliable.

Dexion AG - The Blackberry Specialists in Switzerland
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