Can't authenticate with Imap - External User Authentication

đŸ± Features & apps
1

Hi,

I hope I’m posting in the right category.

I encounter a problem on one of my Nextcloud instances, I can’t login using Imap credentials, my config is right though. I’m using a VPS web server with Plesk as an interface and just updated my instance to Nextcloud 17.0.1.
The nextcloud.log file indicate the following problem ERROR: Could not connect via roundcube lib: The Auth_SASL package is required for DIGEST-MD5 authentication . I checked on the server and Auth-SASL seem to be installed.
33
Here’s the config in my config.php file :
<?php
$CONFIG = array (
‘instanceid’ => ‘’,
‘passwordsalt’ => '’,
‘secret’ => ‘’,
‘trusted_domains’ =>
array (
0 => ‘cloud.domain.eu’,
),
‘datadirectory’ => ‘/var/www/vhosts/domain.eu/cloud.domain.eu/data’,
‘dbtype’ => ‘mysql’,
‘version’ => ‘17.0.1.1’,
‘overwrite.cli.url’ => ‘https://cloud.domain.eu’,
‘dbname’ => '’,
‘dbhost’ => ‘’,
‘dbport’ => ‘’,
‘dbtableprefix’ => ‘oc_’,
‘dbuser’ => '’,
‘dbpassword’ => ‘**’,
‘installed’ => true,
‘maintenance’ => false,
‘user_backends’ =>
array (
0 =>
array (
‘class’ => ‘OC_User_IMAP’,
‘arguments’ =>
array (
0 => ‘my_server.ovh.net’,
1 => 993,
2 => ‘ssl’,
3 => ‘domain.eu’,
4 => true,
5 => false,
),
),
),
‘theme’ => ‘’,
‘loglevel’ => 2,
);

Does anyone have an idea what my problem could be and how to fix it ?

Thanks,

2

Aunt G. provides the following answer on your question, which might help you too:

https://support.plesk.com/hc/en-us/articles/115003975753-Failed-authentication-via-Roundcube-AUTHENTICATE-DIGEST-MD5

3

Thanks for the answer, I wasn’t shure if this error was due to the Cram-MD5 auth.
I asked my hosting provider to modify the config file (I don’t have sudo access).
I’ll keep you in touch if it has work.

4

It did work, the roundcube config file was modified and I had to add “auth_type” => “CRAM-MD5” to $params[“ssl_mode”] in the /apps/user_external/lib/imap.php file.

Thansk for the help,

1 Like