Unable to relay recipient in non-accepted domain

Question

All emails with the domain @mycompany.com are sent successfully. But, if MantisBT wants to send an email to anyone else, for example @othercontractor.com , or @gmail.com , etc , the email is not sent.

In addition, a collateral damage of this problematic email is that it will get stuck in "MySqlDatabase/mantis_email_table" and all the emails after this problematic email in that table won't be sent. So, to fix it, I have to manually delete that entry in the table. It is not very convenient when I want to add contractor who has his own email domain in our bug tracker.

This the email configuration in: /path_to_mantis_bt/config/config_inc.php

// Email Configuration
$g_email_send_using_cronjob = ON;
$g_allow_signup = ON; //allows the users to sign up for a new account
$g_enable_email_notification = ON; //enables the email messages

$g_phpMailer_method = PHPMAILER_METHOD_SMTP;
$g_smtp_host = 'edge.mycompany.com';
$g_smtp_connection_mode = '';
$g_smtp_port = 25;
$g_administrator_email = 'myname@mycompany.com';
$g_from_email = 'myname@mycompany.com';
$g_return_path_email = 'myname@mycompany.com';
$g_from_name = 'Mantis Bug Tracker';

I should mention that we are hosting MantisBT on our own server Microsoft Server 2012 R2 and WAMP(latest version).

The error: 2018-01-08 10:24 PST MAIL email_api.php:1379 email_send() ERROR: Message could not be sent - SMTP Error: The following recipients failed: xxx@gmail.com: 5.7.54 SMTP; Unable to relay recipient in non-accepted domain

Answer 1

It's working now, but I used sendmail instead of using the WAMP/SMTP.

To install SENDMAIL on WAMP, I followed these instructions

This the email configuration in: /path_to_mantis_bt/config/config_inc.php

$g_allow_signup    = ON;  //allows the users to sign up for a new account
$g_enable_email_notification = ON; //enables the email messages
$g_phpMailer_method = PHPMAILER_METHOD_SENDMAIL; //If not using sendmail, use: PHPMAILER_METHOD_SMTP;
$g_smtp_host = 'edge.mycompany.com';
$g_smtp_connection_mode = 'tls';
$g_smtp_port = 587;
$g_smtp_username = 'xxx'; // my username for email myname@mycompany.com
$g_smtp_password = 'xxx'; // my password for email myname@mycompany.com
$g_administrator_email  = 'myname@mycompany.com';
$g_webmaster_email      = 'myname@mycompany.com';
$g_from_email           = 'myname@mycompany.com';
$g_return_path_email    = 'myname@mycompany.com';
$g_from_name = 'Mantis Bug Tracker';

// Log configuration
$g_log_level = LOG_EMAIL | LOG_EMAIL_RECIPIENT | LOG_FILTERING | LOG_AJAX;
$g_log_destination = 'file:/wamp64/logs/mantis.log';
?>

IF you follow the link above, you will know how to update php.ini and sendmail.ini . Update these 2 files with the information in config_inc.php.

Answer 2

I had the same issue. In my case, we were sending out emails from an application and there was a user bcced (hardcoded in the code) which was not in the domain and hence it failed

Answer 3

I had same issue once I changed to @newdomain.com. In my case I found suggestion on the web to clear cache of my browser. I did and all start working. Basically, you need to reload all config files from scratch with new globals... At least it worked for me.

Cheers.