Why don't ESPs warn you, when you're putting your email together, when you're about to send the test message, if DMARC is going to fail? It was perhaps considered optional in the pas…
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A friend warned me of a scenario that could have the potential to freak people out, if misunderstood. It looks like this: This person is using Spamhaus to filter inbound mail. Th…
Anti-spam blocking list group Spamhaus is warning that come March 2021, they will begin implementation of new error codes (DNSBL lookup responses) that they may provide in respon…
