[Dovecot] Connection closed by foreign host.

[Michael Cramer]

i tried the latest dev version 2.2.2-0~auto54 for ubuntu and when i do some
testing i got a connection closed.

the commands are issued through telnet:

root at i920:~# telnet localhost imap
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE  
IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
1 LOGIN test at lokal.de 123456
1 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE  
IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS  
THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT  
CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC  
ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE  
BINARY MOVE NOTIFY COMPRESS=DEFLATE QUOTA ACL RIGHTS=texk] Logged in
2 LIST () "" (virtual/*)
* LIST () "/" virtual/All
* LIST () "/" virtual/Flagged
* LIST (\UnMarked) "/" virtual/Flagged
* LIST (\Marked) "/" virtual/All
2 OK List completed.
3 LIST () "" (*)
Connection closed by foreign host.


the command with number 3 results everytime in a connection closed. i  
turned on debug_log but nothing is shown there.