If you're wondering why you are receiving more spam then usual this could be part of the issue.
Seems amazon.com account emails were disclosed by mistake recently.
Here is the Notification:
Received-SPF: pass (hidden: domain of bounces.amazon.com designates 18.104.22.168 as permitted sender)
Received: from a13-69.smtp-out.amazonses.com ([22.214.171.124]) by hidden with
ESMTPS (version=TLS1_2 cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521); Tue, 27 Nov 2018 14:43:50 -0600
Important Information about your Amazon.com Account
Here is the message:
Hello, We’re contacting you to let you know that our website inadvertently disclosed your email address due to a technical error. The issue has been fixed. This is not a result of anything you have done, and there is no need for you to change your password or take any other action. Sincerely,Customer ServiceAmazonPlease note: this e-mail was sent from a notification-only address that cannot accept incoming e-mail. Please do not reply to this message.