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Can’t enable DNSBL/RBL in Plesk because it’s greyed out

··35 words·1 min·
Mail Plesk Qmail Spam

If you have a new Plesk installation and the following option is greyed out in Server -> Mail:

Switch on spam protection based on DNS blackhole lists

Just install the following RPM from Plesk:

psa-qmail-rblsmtpd