Smtp sending problem with Roundcube

Hi,
after upgrading to Debian 12 and ISPConfig 3.2.11 sending email from Roundcube web interface I get this error on both synchronized servers:

Code:

SMTP error (530): Failed to set the sender "[email protected]" (5.7.0 Must issue a STARTTLS command first)

What can it be?

Thanks a lot

 

Hi Till,
my Rouncube setup went back to the Perfect server for Debian 10 and I didn't know there was one for Debian 12.

Before the configuration was this:

Code:

$config['default_host'] = 'localhost';
$config['smtp_server'] = 'localhost';
$config['smtp_port'] = 25;

Now I added this and it works

Code:

$config['smtp_host'] = 'localhost:25';

So the result is this:

Code:

$config['default_host'] = 'localhost';
$config['smtp_host'] = 'localhost:25';
$config['smtp_server'] = 'localhost';
$config['smtp_port'] = 25;

That's okay, or do you think it's better to remove the other smtp references and leave only these:

Code:

$config['default_host'] = 'localhost';
$config['smtp_host'] = 'localhost:25';

Thanks a lot