If you’ve skipped the first part of this series, we strongly recommend you go and read this blog first to understand the misuse of Spamhaus blocklists to block outbound mail. However, if you provide a mail service and want to learn specifically how to limit your outbound spam, read on.
*** This is a Security Bloggers Network syndicated blog from The Spamhaus Project authored by The Spamhaus Team. Read the original post at: https://www.spamhaus.org/resource-hub/email-security/a-misuse-of-spamhaus-blocklists-part-2-how-to-limit-outbound-spam