can not send email - SMTP error on roundcube

[wolvepy]

Hi,
First: there's no or very little info about email server in Sentora documentation. Maybe becuz we can go directly to Dovecot, etc... to get support.

I'm using roundcube... I can loggin but when I press to send I get this error:
[img][/img]

Which means: An error has ocurred! Error SMTP (-1): Server connection has failed

I went to Admin > Sentora Config and I put by mistake something in SMTP Server field... I deleted and saved my change, but Sentora does not accept the change... it's still there what I wrote. Then I tried leaving in blank but is not taking the change. Is there any file where I can go set up this?

Then, I went to:
/etc/sentora/panel/etc/apps/webmail/config/config.inc.php
In SMTP server is written: 'localhost'... not the one I wrote.
Is this the correct file to set up email server config.?

I can not receive email as well.

Why Sentora is not getting my changes?

[TGates]

I'm not sure why Sentora is not saving your settings in admin > config, but you can manually edit the table x_settings for the config. Roundcube's config.inc.php needs to be edited manually, it does not get changed by Sentora.

[wolvepy]

Thanks for your answer.
I made the change in x_settings but it didn't solve the problem or maybe it wasn't related to that.
I opened the ports 25 and 465 in iptables to allow smtp server but my Ubuntu does not open really.. I telnet but it shows connection refused...
   
Here you see the ports.

I really don't know what to do because I'm getting the same error.

[wolvepy]

Now it's partially solved.
I can send (unfortunately it falls in the spam box) but I can not receive.

What I did is:

Code:

sudo dpkg-reconfigure postfix

And follow the instructions.
This solved the problem of the port, but not the smtp server.
For smtp I edited /etc/postfix/main.cf file with:

smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes

I can send but not receive.

[TGates]

Is there anything in the log files showing what is hoinh on when an incoming email is received?

[wolvepy]

Is there anything in the log files showing what is hoinh on when an incoming email is received?

Sorry for my delay on answering, but first I went to check SPF, DKIM, etc records and set up.
Now, everything is OK, but I still can not receive emails.

I also checked all the logs in Dovecot, mail, Sentora, etc but nothing in there to give me hints about what's happening.
I did a mail-tester.com and I got a score of 6.8, which is good.

Sending a test email from my Gmail I got this:

Delivery to the following recipient failed permanently:

info@tld.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain tld.com by mail.tld.com. [x.x.x.x].

The error that the other server returned was:
554 5.7.1 <info@tld.com>: Relay access denied

Which other logs do I need to check to find info about what could be the issue?

[TGates]

There are a few reason why this could happen. I took a peek on Google (since I am still learning the ins-and-outs of *nix email systems) and it could be improper MX records, email address blocked, spam blocking, etc. Google: The error that the other server returned was: 554 5.7.1: Relay access denied

Not much help from me
But there are a lot of reasons for it and you will need to read through them and check your settings. The first one (Bob Cares?) seems to have several solutions.

[wolvepy]

Ok. Let me go through the process... I'll let you know what I got.
Thanks.

[TGates]

Ok, great. Yeah, there was a lot of reasons :
Good luck!

[Telepuzik]

I know this is old post and marked as not resolved, but, digging around I found a solution which resolved my issue with SMTP error:

I have modified this file:

/etc/sentora/configs/roundcube/roundcube_config.inc.php


replace this line:

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

to

$config['smtp_user'] = '';

and replace this line:

$config['smtp_password'] = '%p';

to 

$config['smtp_password'] = '';

// NOTE: '' is TWO ' , and this is not a single " symbol.

Spent 2 weeks re-installing and modifiying configs, but by the end, changes above fixed "smtp error (535) authentication failed" issue.... Yay.... Hope it will help others.