DNSBL Return Codes

DNSBLs may return DNS A or TXT records, with the TXT record usually displaying text as part of SMTP error text.

Multiple A records can be returned but must be in the range, excluding and

The range can signify individual lists within an aggregated list or multiple smaller data sets.

Return codes for Abusix Mail Intelligence lists are in our documentation here.

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Please use our lookup-service and follow the instructions there in order to get that resolved.