Postfix IMAP/SMTP problem on Roundcube - (Ubuntu 18.04)


I installed postfix from this address for my server:

I can send and receive mail with SSH. There is no problem in this part.

Then i installed the Roundcube. All settings look green on Roundcube Webmail Installer and i can see my email address and password, and the field I will enter.

My problem starts here.

I cannot login to this field with my information. (Failed to connect to IMAP server) I also get an error when I enter this information on Roundcube Webmail Installer (Test SMTP config and Test IMAP config)

I made the settings like this; Server: localhost SMTP Port: 25 IMAP Port: 143

Where am I making mistakes. Please help me. Thanks.

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Hi @incegozmuratcan,

The Issues that you couldn’t be experiencing with Roundcube could be a lot. It’s gonna be best if we try and pinpoint it by enabling Roundcube’s debug function. To actually do so, you can add the following two lines in your file

$config['debug_level'] = 4;
$config['imap_debug'] = true;

Additionally, I noticed you were checking the tutorial without Dovecot. Without Dovecot, your Roundcube instance won’t be able to connect to your Postfix service. I’ll recommend checking the following tutorial as well :

It will provide you with a way to configure Dovecotwith your Postfix service which will by my account fix the current experienced issues.

Regards, KDSys