We interrupt your regularly scheduled blog series for this important public service announcement:

A number of times now, I’ve discovered that there was email being sent to me that I was not getting. Fortunately, my ISP is also a colleague, mentor, and friend and a real expert in cybersecurity, so I asked him. And he explained it to me (and then again when I’d forgotten and it happened again; sorry Sky!).  So I’ll document it here so I can point to it in further instances. And it’s about domains and SPF, so it’s a wee bit geeky (and at the edge of my capability).  Yet it’s also important for reducing spam, and I’m all for that. So here we go.

This started with an organization where I had been conversing with individuals.  And eventually it became clear that they had sent me a form letter, as part of a bigger mailing, and assumed I had it while I was still asking about details in said form letter. Debugging this is how I found out what happened.

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