Replies: 0
Hi,
I have setup WP Mail SMTP to work with an Amazon AWS SMTP server. Sending test emails works.
I have installed the User Verification plugin (https://wordpress.org/plugins/user-verification/) that should send a confirmation email when a user registers.
But, when the user registers I get the following error:
SMTP Error: data not accepted.SMTP server error: DATA END command failed Detail: Transaction failed: Duplicate header ‘MIME-Version’.
SMTP code: 554
I’m not sure when the MIME-Version header is set twice. I tried commenting out the line in that sets the MIME-Version header in the User Verification plugin, but it didn’t make any difference. Here’s how the headers look like
[MIMEHeader:protected] => Date: Sat, 13 Jul 2019 07:54:48 +0000
To: my@email.com
From: Admin <admin@mysite.com>
Subject: New User Submitted – http://www.mysite.com
Message-ID: <813f9c492967e4a76ca8ddd332585eb8@www.mysite.com>
X-Mailer: WPMailSMTP/Mailer/smtp 1.5.1
MIME-Version: 1.0
MIME-Version: 1.0
Content-Type: text/html; charset=ISO-8859-1
Any idea why this happens?
thanks,
John