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What does SMTP server error mean?
Put plainly, it means that the email could not be delivered. An SMTP error 550 delivery failure can happen for a variety of reasons. And while the error code 550 itself tells you nothing about the cause of failure, many an SMTP server includes an explanatory message with the error code.
What is SMTP error?
An SMTP response code is a three digit code that the servers use to communicate throughout the email sending process. If there is a communication error, you will receive an SMTP error code — a message that indicates the specific problem; like the end of server communication which is error code 550 (The request failed).
What should I do if my SMTP settings went wrong?
SMTP configuration didn’t go wrong, because in the following two situations, email can be sent out well: configure site-wide email address to be the same one configured in SMTP settings: [email protected]. configure SMTP settings with a gmail address, then configuring site-wide email address to be any email address will work well.
How to solve PHP-Mailer error from address failed?
Please help me to solve this issue. You have to use your own parameters, in your smtp authentication. Also you can check other mail server’s smtp parameters on PHPMailer’s Website: phpmailer.worxware.com/index.php?pg=tip_srvrs
Why does CentOS 7 disable SMTP connections by default?
It took me a lot of digging to figure out the CentOS 7 disables SMTP connections by default, and its not through Firewalld. Try running these lines if you run into this ” Mailer Error: The following From address failed: ” and “Called Mail () without being connected.”
How to check other mail server’s SMTP parameters?
Also you can check other mail server’s smtp parameters on PHPMailer’s Website: phpmailer.worxware.com/index.php?pg=tip_srvrs It took me a lot of digging to figure out the CentOS 7 disables SMTP connections by default, and its not through Firewalld.