[imp] Mail server closed the connection unexpectedly

[Jan Schneider]

Zitat von Stefan Suurmeijer <stefan at raptorweb.nl>:

> Hi list,
>
> I'm installing a new horde instance but keep running into a problem that
> has me stumped.
> Every time I try to login through IMP, the login fails with the message:
>
> Mail server closed the connection unexpectedly
>
> The problem isn't in the mailserver: it works perfectly with IMAP
> clients and I've even tried connecting IMP to another IMAP server (that
> works perfectly with another Horde/IMP installation), the problem
> persists. So it has to be something in my horde installation.
> I've tried logging in with TLS and without encryption, both give exactly
> the same error message. I've tried setting the Horde log level to DEBUG,
> but that didn't really give me any useful information either.
> I've even copied the backends.local.php from the other Horde instance
> that is working for me. Still the same error. So it has to be somewhere
> in the horde installation
>
> When I look at the Horde test page, everything is green for all
> applications. So I'm out of ideas.
>
> Anyone have any ideas what might be causing this?
>
> Horde version is 5.2.12 with IMP H5 (6.2.16)
> Relevant section of backends.local.php below
>
> Thanks in advance,
> Stefan
>
> My backends.local.php (relevant section):
>
> $servers['imap'] = array(
>     // Disabled by default
>     'disabled' => false,
>     'name' => 'Cyrus IMAP Server',
>     'hostspec' => 'localhost',
>     'hordeauth' => true,
>     'protocol' => 'imap',
>     'port' => 143,
>     'secure' => 'tls',
>     'maildomain' => 'mydomain.com',
>     'smtp' => array(
>         'auth' => true,
>         'horde_auth' => true,
>         'host' => 'localhost',
>         'lmtp' => false,
>         'port' => 25,
>     ),
>     'spam' => array(
>     ),
>     'admin' => array(
>          'user' => 'cyrus',
>          'password' => 'cyruspassword',
>          'userhierarchy' => 'user.'
>     ),
>     'acl' => true,
>     'cache' => false,
>     'quota' => array(
>         'driver' => 'imap',
>         'params' => array(
>             'hide_when_unlimited' => true,
>             'unit' => 'MB'
>         )
>     ),
>     'special_mboxes' => array(
>          IMP_Mailbox::MBOX_DRAFTS => 'Drafts',
>          IMP_Mailbox::MBOX_SENT => 'Sent',
>          IMP_Mailbox::MBOX_SPAM => 'SPAM',
>          IMP_Mailbox::MBOX_TEMPLATES => 'Templates',
>          IMP_Mailbox::MBOX_TRASH => 'Trash',
>     ),
>     'autocreate_special' => false,
> );
>
>
> Log information:
>
> cat /tmp/imp_imap.log
> ------------------------------
>>> Sat, 12 Nov 2016 21:57:44 +0000
>>> Connection to: imap://localhost/
>>> Server connection took 0.0003 seconds.
>>> ERROR: Server closed the connection.
> ------------------------------
>>> Sat, 12 Nov 2016 21:57:47 +0000
>>> Connection to: imap://localhost/
>>> Server connection took 0.0003 seconds.
>>> ERROR: Server closed the connection.

And what's in the IMAP server's logs at this time?

-- 
Jan Schneider
The Horde Project
http://www.horde.org/