[imp] Mail server closed the connection unexpectedly

[Gert Lynge]

Hi

Normally when I login I end up in Imp directly, now I'm getting: "Mail
server closed the connection unexpectedly"-error.
I'm simply thrown back to the login page with this error shown.

Imap is working perfectly from other devices (Outlook on my PC and mail on
my android phone).

Horde is version 5.2.1
Imp is version 6.2.2
Apache is version 2.4.10
OS is FreeBSD 9.3-RELEASE-p2

I recently upgraded php from 5.4.32 to 5.4.33. But I don't know if that's
related to this error.

I've created a backends.local.php with:
<?php
$servers['imap']['debug'] = true;
$servers['imap']['timeout'] = 120;
?>

...and the log shows:
---
------------------------------
>> Sat, 20 Sep 2014 19:40:10 +0200
>> Connection to: imap://localhost/
>> Server connection took 0,0006 seconds.
S: * OK [CAPABILITY IMAP4REV1 I18NLEVEL=1 LITERAL+ SASL-IR LOGIN-REFERRALS
STARTTLS] localhost IMAP4rev1 2007f.404 at Sat, 20 Sep 2014 19:40:10 +0200
(CEST)
C: 1 STARTTLS
S: 1 OK STARTTLS completed
>> Command 1 took 0,0013 seconds.
>> Successfully completed TLS negotiation.
C: 2 [INITIAL CLIENT RESPONSE (username: lynge)]
S: +
C: xxxxxxxxxxxxxxxxxxxxxxxxx
S: 2 OK [CAPABILITY IMAP4REV1 I18NLEVEL=1 LITERAL+ IDLE UIDPLUS NAMESPACE
CHILDREN MAILBOX-REFERRALS BINARY UNSELECT ESEARCH WITHIN SCAN SORT
THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User lynge
authenticated
>> Command 2 took 0,0107 seconds.
>> CACHE: Using the Horde_Imap_Client_Cache_Backend_Cache storage driver.
C: 3 LSUB "" INBOX
C: 4 LSUB "" *
C: 5 LSUB "" #mhinbox*
C: 6 LSUB "" #mh/*
C: 7 LSUB "" ~*
C: 8 LSUB "" #shared/*
C: 9 LSUB "" #ftp/*
C: 10 LSUB "" #news.*
C: 11 LSUB "" #public/*
S: * LSUB (\NoInferiors) NIL INBOX
S: 3 OK LSUB completed
>> Command 3 took 0,0023 seconds.
S: * LSUB () "/" sent-mail
S: * LSUB () "/" Kladder
S: * LSUB () "/" Trashcan
S: * LSUB () "/" Sent
S: * LSUB () "/" Sendt
S: * LSUB () "/" Spam
S: * LSUB () "/" Templates
S: * LSUB () "/" Trash
S: * LSUB (\NoInferiors) NIL INBOX
S: * LSUB () "/" "Sent Items"
S: * LSUB () "/" "Deleted Items"
S: * LSUB () "/" Drafts
S: * LSUB () "/" "Junk E-mail"
S: * LSUB () "/" "U&APg-nsket e-mail"
S: * LSUB () "/" Papirkurv
S: * LSUB () "/" "Slettet post"
S: * LSUB () "/" Arkiv
S: * LSUB () "/" "Sent Messages"
S: * LSUB () "/" "Deleted Messages"
S: 4 OK LSUB completed
>> Command 4 took 0,0066 seconds.
S: 5 OK LSUB completed
>> Command 5 took 0,0066 seconds.
S: 6 OK /home/lynge/mail/.mh_profile not found, mh format names disabled
>> Command 6 took 0,1012 seconds.
S: 7 OK LSUB completed
>> Command 7 took 0,1015 seconds.
S: 8 OK LSUB completed
>> Command 8 took 0,1017 seconds.
S: 9 OK LSUB completed
>> Command 9 took 0,1019 seconds.
S: 10 OK LSUB completed
>> Command 10 took 0,1021 seconds.
>> Slow Command: 120,003 seconds
>> ERROR: read/timeout error.
>> ERROR: Server closed the connection.
---

At first the timeout was after 30 sec. That is why I tried to increase it.

Any ideas?

Thank You in advantage for any help