Problem with SMTP authentication

Hello guys, I am pretty new on setting up webservices and i only have basic (CCNA 1" module) knowledge on networks :rolleyes:, and i am trying to set one web service on a local server, to receive and send mail through an mail server hosted in my ISP. Setup: - OSX - Roundcubemail - Server app - Dinamic IP with No-IP link Here is my default.inc.php:

/ ----------------------------------
// SMTP
// ----------------------------------

// SMTP server host (for sending mails).
// To use SSL/TLS connection, enter hostname with prefix ssl:// or tls://
// If left blank, the PHP mail() function is used
// Supported replacement variables:
// %h - user's IMAP hostname
// %n - hostname ($_SERVER['SERVER_NAME">)
// %t - hostname without the first part
// %d - domain (http hostname $_SERVER['HTTP_HOST"> without the first part)
// %z - IMAP domain (IMAP hostname without the first part)
// For example %n = mail.domain.tld, %t = domain.tld

$config['smtp_server"> = "%n";
// $config['smtp_server"> = "";

// SMTP port (default is 25; use 587 for STARTTLS or 465 for the
// deprecated SSL over SMTP (aka SMTPS))

$config['smtp_port"> = 25;

// SMTP username (if required) if you use %u as the username Roundcube
// will use the current username for login

$config['smtp_user"> = '%u';
// $config['smtp_user"> = '';

// SMTP password (if required) if you use %p as the password Roundcube
// will use the current user's password for login

$config['smtp_pass"> = '%p';
// $config['smtp_pass"> = '';

// SMTP AUTH type (DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN or empty to use
// best server supported one)

$config['smtp_auth_type"> = "LOGIN";
// $config['smtp_auth_type"> = "";

// Optional SMTP authentication identifier to be used as authorization proxy
$config['smtp_auth_cid"> = null;

// Optional SMTP authentication password to be used for smtp_auth_cid
$config['smtp_auth_pw"> = null;

// SMTP HELO host
// Hostname to give to the remote server for SMTP 'HELO' or 'EHLO' messages
// Leave this blank and you will get the server variable 'server_name' or
// localhost if that isn't defined.
$config['smtp_helo_host"> = '';

// SMTP connection timeout, in seconds. Default: 0 (use default_socket_timeout)
// Note: There's a known issue where using ssl connection with
// timeout > 0 causes connection errors (PHP :: Bug #54511 :: Failure in socket open to some SSL server)
$config['smtp_timeout"> = 0;

// SMTP socket context options
// See PHP: SSL context options - Manual
// The example below enables server certificate validation, and
// requires 'smtp_timeout' to be non zero.
// $config['smtp_conn_options"> = array(
//   'ssl'         => array(
//     'verify_peer'  => true,
//     'verify_depth' => 3,
//     'cafile'       => '/etc/openssl/certs/ca.crt',
//   ),
// );
$config['smtp_conn_options"> = null;

And i am getting a:


SMTP Error (250): Authentication failed.

Without being possible to send mails to no one. And If i change those to default:

$config['smtp_server"> = "";
$config['smtp_port"> = 25;
$config['smtp_user"> = '';
$config['smtp_pass"> = '';
$config['smtp_auth_type"> = "";

I would have a different output, here i am able to send and receive mails between my several domains in my ISP, but i am unable to send mails to domains such as gmail.com, receiving the following error:

SMTP Error (550): Failed to add recipient "XXX" (Please turn on SMTP Authentication in your mail client.
XXX (XXX.local) [XXX]:XXX
is not permitted to relay through this server without authentication.).

I discover that SMTP works with authentication through SPF but i dont know how to set it up in my local server and/or my cpanel in my ISP :confused:

SipriusPT

October 14, 2016 17:07

I dont know also if i had to let Mail on or off from my server app to solve this problem, because i was able to send and receive mails in the last situation with all in default: [Mod Note: Removed - Please Attach Images Directly To The Thread] Note: I am using in both images the same link, the domain of my email service.

cPanelMichael

October 14, 2016 18:07

and i am trying to set one web service on a local server, to receive and send mail through an mail server hosted in my ISP.

Hello, Could you elaborate a little more on this configuration? For instance, does your provider offer cPanel, or are you attempting to configure a local cPanel server? Thank you.

October 14, 2016 18:57

Thanks Michael. I have a email server hosted in my provider who have cpanel there. And i pretend to use a local server inside of a private network, as a web service to push and send mail as a "man in the middle" between email clients and the email server. And i am having some troubles because SMTP authorizations, to send mails to other domains outside of my domains list (i have two domains in use in the provider).

October 14, 2016 21:40

Hello, Thank you for the additional information. There's actually a recent thread you may find helpful: DKIM in cPanel with PHPmailer clarification Thanks!

October 17, 2016 11:03

Thanks Michael. But do you think/know if DKIM could lead to an error with authentication like the one that i am having? My main question is to know if this problem is in my local server or in my ISP server, or both! I have no clue on how to solve this.

October 17, 2016 15:49

I have people in this network working with outlook, and they use their creds both to SMTP and IMAP ]http://www.roundcubeforum.net/Smileys/default/undecided.gif
there are any special concern when using mail web services or is the same as using a microsoft outlook?

October 18, 2016 11:26

I FINALLY found what was doing this, it was my server app, i had to leave Mail turned on but without any relay outgoing mail through ISP activated, and i could not leave Mail turned off. :D

October 24, 2016 21:00

I'm happy to see you were able to determine the cause of the problem. Thank you for updating this thread with the outcome.

October 24, 2016 21:03

You welcome Michael!

Problem with SMTP authentication

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