you mean you are using the “Other SMTP” mailer in our plugin settings, which is using the Mandril SMTP server to send emails?
Yes, that is correct.
Are only the user registration emails coming through if the “Do not send” setting is enabled in WP Mail SMTP Misc settings?
Yes, it appears to be new registration, password resets (so all account related activities)
Could you please check out the “original message” for one of those registration emails that come through to your inbox and see what the value for “X-Mailer” is?
From: TimeSlips Creative Storytelling <[email protected]>
Subject: [TimeSlips] New User Registration
Received: from [35.236.123.73] by mandrillapp.com id e7f9d8b13cc6453b9dcb163809b4960f; Tue, 26 Oct 2021 06:11:15 +0000
X-Mailer: WPMailSMTP/Mailer/smtp 3.0.3
Message-Id: <N0sWjG2Dcjh39SXB65BTtdTQm5FBweYbYnlG2KjRCw@devtimeslips.kinsta.cloud>
To: [email protected]
X-Report-Abuse: Please forward a copy of this message, including all headers, to [email protected]
X-Report-Abuse: You can also report abuse here: https://mandrillapp.com/contact/abuse?id=31218925.e7f9d8b13cc6453b9dcb163809b4960f
X-Mandrill-User: md_31218925`