We're still looking into this issue, but wanted to let Push to Kindle users know that a recent change at Amazon might be affecting delivery of your articles.
If you're receiving your articles just fine, please ignore for now. But if you've noticed either of the following, please read on:
- Articles not arriving
- Emails from Amazon with subject "Verify your Kindle document" asking you to click a link to verify the request
Amazon appear to have made changes to how they process emails sent to their send-to-kindle addresses.
For the time being, if you're affected, please:
What we know so far
When you add a custom 'send from' address in Push to Kindle, we send the article to your Kindle account with a 'From' header set to that address. It looks like in some cases Amazon's servers are now sending verification request emails to the address set as the 'send from' address.
If the 'send from' address is not a real email address (it was possible in the past to use any address here, as long as it also appeared in your Amazon Kindle approved list), you will not receive the verification email sent by Amazon, and the article will simply not be delivered to you.
If it is a valid address, you may now always receive a verification request, which can be annoying.
We currently use a different server for delivering emails sent from '[email protected]', which adheres to email authentication protocols allowing receiving servers to verify that we own that address. In our tests, articles sent this way are not affected.
Please do let us know if you're experiencing trouble receiving your articles and if the suggestion above fixes things for you.