On Thu, May 3, 2018 at 9:28 AM, Joe Hartley <jh@brainiac.com> wrote:
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Jeff, I've found the biggest problem with list delivery is to Yahoo's servers,
which accept the mail but may or may not actually send it on to the recipient.
[...] I've
had a gmail account for years to test the list with, and I've never had a
message dropped. A few have ended up in the spam folder because of certain
content keywords, but that's quite rare.
I've also been using Gmail for years. Some months ago, Gmail started putting all messages sent from Jeffrey Vandine to spam, regardless of how many times I said "Not Spam". I finally had to create a filtering rule. Now his messages arrive, but Gmail still shows me a big yellow banner at the top of his messages:
This message was not sent to Spam because of a filter you created.
Craig Setti is another user whose messages get aggressively filtered. I found one of his that says:
This message has a from address in yahoo.com but has failed yahoo.com's required tests for authentication. Learn more
Other Yahoo users (e.g., Tim Collins) don't have this problem.
Joe: if you want some help tracking this down, I could provide more data off list.