I think it's not a RCU problem. You can set relay in your smtp server config file (in my case: postfix)

2015-02-10 7:14 GMT-03:00 mobin@origamitechnologies.com:

Dear Sir,

We have installed roundcube mail client on our server and it was working fine earlier.Now we can't send mail to other mail servers like gmail,yahoo,etc...

While sending mail other than our mail server we are getting error message

SMTP Error (550): Failed to add recipient "arjunaju108@gmail.com" (Please turn on SMTP Authentication in your mail client, or login to the IMAP/POP3 server before sending your message. (email.origamitechnologies.com) [192.254.190.128]:41201 is not permitted to relay through this server without authentication.)

How can we resolve this issue.Please help us to resolve this issue

Mobin TM Origami Technologies _______________________________________________ Roundcube Users mailing list users@lists.roundcube.net http://lists.roundcube.net/mailman/listinfo/users

On Tue, Feb 10, 2015 at 11:14 AM, mobin@origamitechnologies.com wrote:

Dear Sir,

We have installed roundcube mail client on our server and it was working fine earlier.Now we can't send mail to other mail servers like gmail,yahoo,etc...

While sending mail other than our mail server we are getting error message

SMTP Error (550): Failed to add recipient "arjunaju108@gmail.com" (Please turn on SMTP Authentication in your mail client, or login to the IMAP/POP3 server before sending your message. (email.origamitechnologies.com) [192.254.190.128]:41201 is not permitted to relay through this server without authentication.)

How can we resolve this issue.Please help us to resolve this issue

Reading the error message already helps here: "Please turn on SMTP Authentication in your mail client"

That means Roundcube needs to authenticate with username and password (of the current user) before sending a message. From our How-To wiki you can learn how to do that: http://trac.roundcube.net/wiki/Howto_Config#SendingmessagesviaSMTP

In short:

$config['smtp_user'] = '%u'; $config['smtp_pass'] = '%p';

Cheers, Thomas