Sent but not rec'd at Amazon

I sent some articles yesterday, but they never arrived at Amazon nor did I recv a failure notification from Amazon. They were sent according to P2K. Tried a few today and still not rec’d. Changed “from” from my usual kindle email to kindle@fivefilters.org, but still not rec’d. Any suggestions? They were sent from Reactormag.com

Sorry about the slow reply. We think this was an issue with Amazon Kindle’s service back then. Should have been resolved soon after. Please let us know if you still have trouble receiving articles.