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[squirrelmail.git] / doc / Development / imap_servers.txt

$Date$

Collected information about IMAP servers.

-----------
Cyrus IMAPD
-----------
An IMAP server developed at Carnegie Mellon University

Tested Cyrus IMAP4 v2.2.12-Invoca-RPM-2.2.12-6.fc4
CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS NAMESPACE
 UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT
 THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE LISTEXT
 LIST-SUBSCRIBED X-NETSCAPE

PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen $MDNSent \*)

NAMESPACE (("INBOX." ".")) (("user." ".")) (("shared." "."))

Server supports server side sorting since 2.0.4 version. euc-jp, euc-kr, 
tis-620, cp1251, cp1255 character sets are not supported by sorting functions 
(v.2.2.12).

Site URL: http://asg.web.cmu.edu/cyrus/


--------
UW IMAPD
--------
Part of University of Washington IMAP toolkit.

Tested 2002e (2003.339)
CAPABILITY IMAP4REV1 IDLE NAMESPACE MAILBOX-REFERRALS BINARY UNSELECT SCAN SORT
 THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND LOGIN-REFERRALS STARTTLS
 AUTH=LOGIN

PERMANENTFLAGS (Seen \* \Answered \Flagged \Deleted \Draft \Seen)

NAMESPACE (("" "/")("#mhinbox" NIL)("#mh/" "/")) (("~" "/")) (("#shared/" "/")("#ftp/" "/")("#news." ".")("#public/" "/"))

Server supports server side sorting. Plain text logins are disabled by default.
Version visible in IMAP greeting can be used by more than one packaged version.

Site URL: http://www.washington.edu/imap/


------------
Courier IMAP
------------
Fast, scalable, enterprise IMAP server that uses Maildirs

CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT
 THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION

PERMANENTFLAGS (\* \Draft \Answered \Flagged \Deleted \Seen)

NAMESPACE (("INBOX." ".")) NIL (("#shared." ".")("shared." "."))

Recent (3.0.0+) versions support most of character sets used by SquirrelMail, 
if courier-imap is compiled with --enable-unicode option. Only koi8-u 
is not supported. Server can be compiled with custom number of supported
character sets. Sorting can be disabled in imapd configuration. Capability
string can be set in configuration. Supports CRAM-MD5, CRAM-SHA1 and 
CRAM-SHA256, if userdb or other backend stores passwords in plain text. Does 
not handle traditional mailbox files.

Site URL: http://www.courier-mta.org/


-----------
hMailServer
-----------
Open source email server for WinNT and later.

Tested 4.1.1 (Build 140).
CAPABILITY IMAP4 IMAP4rev1 QUOTA

PERMANENTFLAGS (\Deleted \Seen \Draft \Answered \Flagged)

Site URL: http://www.hmailserver.com/


---------
Mercury32
---------
Mercury Mail Transport System. Free email server for Win32 and Netware.

Tested Win32 v.4.01b
CAPABILITY IMAP4rev1 X-MERCURY
PERMANENTFLAGS (\Deleted \Draft \Seen \Answered)

Comments:
* Server side sorting and threading are not supported.
* Message flags are not supported.
* IMAP folders can store messages _or_ other folders.
* Supports STARTTLS, if configured.
* May have issues with 8bit IMAP folder names.

Site URL: http://www.pmail.com


-------
Dovecot
-------
Dovecot Secure IMAP server.

Tested v.0.99.14

CAPABILITY IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE 
  CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE

PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)

IMAP server supports server side sorting and threading. 1.0alpha1-5 versions
violate syntax of responses to UID commands. NAMESPACE is supported in 1.0alpha.
Remote plain text logins are disabled by default.

Site URL: http://www.dovecot.org


---------
Binc IMAP
---------
Simple, lightweight IMAP server.

Tested v.1.2.13 and 1.3.4

CAPABILITY IMAP4rev1 STARTTLS AUTH=LOGIN AUTH=PLAIN (1.2.13)
CAPABILITY IMAP4rev1 STARTTLS AUTH=LOGIN AUTH=PLAIN IDLE LITERAL+ NAMESPACE
 CHILDREN (1.3.4)

PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft) - 1.2.13
PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*) - 1.3.4

IMAP server does not support server side sorting and threading. Plain text 
logins are disabled by default. Due to available storage backend configuration 
options it is impossible to create single preset, which covers all setups.

Site URL: http://www.bincimap.org


-------------------
GNU Mailutils IMAPD
-------------------
Part of GNU mail utility collection

Tested v.0.6.1 (Debian Sarge) and v.0.6.90

CAPABILITY IMAP4rev1 NAMESPACE IDLE X-VERSION AUTH=GSSAPI AUTH=ANONYMOUS
 AUTH=EXTERNAL AUTH=PLAIN AUTH=LOGIN AUTH=SECURID AUTH=DIGEST-MD5 AUTH=CRAM-MD5

PERMANENTFLAGS (\Answered \Deleted \Seen)

NAMESPACE (("" "/")) NIL NIL

Can use UW preset. Server side sorting is not supported. IMAP folders can 
store messages or subfolders. Can't create second level (mail/Folder/Subfolder/)
subfolders. Invalid unseen message count, when \Seen flag is toggled manually. 
Folder listing with non-default sort order issues are fixed in cvs version. 
Use of server with SquirrelMail is not recommended and not supported.

Site URL: http://savannah.gnu.org/projects/mailutils


------------
DBMail IMAPD
------------
IMAP server that is part of DBMail email suite. DBMail provides local delivery 
agent, pop3 and imap servers. User information and emails are stored in
database.

Tested v.2.0.7
Information provided by Muhd Zamri

CAPABILITY IMAP4 IMAP4rev1 AUTH=LOGIN ACL NAMESPACE SORT

PERMANENTFLAGS (\Seen \Answered \Deleted \Flagged \Draft \Recent)

NAMESPACE (("" "/")) (("#Users" "/")) (("#Public" "/"))

IMAP server provides partial support of IMAP QUOTA extension. setquota command
is not supported and QUOTA extension is not advertised in CAPABILITY. SORT 
extension is broken in tested version.

> A05 UID SORT (FROM) US-ASCII ALL
A05 BAD syntax error in sort keys

> A06 UID SORT (FROM) ISO-8859-1 ALL
A06 BAD UID command received in invalid state

Site URL: http://www.dbmail.org


----
Bejy
----
HTTP and email server written in Java. User information is stored in database. 
SELECT response is in rfc 2060 format.

Tested v.1.4.1.58b

CAPABILITY IMAP4rev1

PERMANENTFLAGS - missing
FLAGS (\Answered \Flagged \Deleted \Seen \Draft)

Site URL: http://www.bejy.net

--------
Mac OS X
--------
No clear information about used software. Some OS X versions might use Eudora
Internet Messaging Suite (EIMS, http://www.eudora.com/eims/), some - Apple IMAP 
server, some - Cyrus.


---------------------
Exchange IMAP service
---------------------
IMAP server included in proprietary Exchange Server, Microsoft messaging and 
collaboration server.

Server does not support server side sorting.


----
PMDF
----
PMDF is a proprietary, high performance, standards-based Internet messaging 
product suite for Windows, OpenVMS, Tru64 UNIX, and Solaris.

Tested IMAP4rev1 Server PMDF V6.2-X29.1
CAPABILITY IMAP4 IMAP4REV1 NAMESPACE X-NON-HIERARCHICAL-RENAME AUTH=LOGIN
 AUTH=PLAIN

PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen)

NAMESPACE (("" "/")) NIL NIL

Supports TLS and SSL encryption, SASL CRAM-MD5 and DIGEST-MD5 authentication. 
Includes SIEVE (rfc3028) support.

Site URL: http://www.process.com/tcpip/pmdf.html

-----------------
Merak IMAP server
-----------------
Proprietary IMAP server included in Merak Email Server Suite.

Tested 8.3.0.r and 8.3.1 beta.

CAPABILITY IMAP4rev1 AUTH=CRAM-MD5 AUTH=DIGEST-MD5 AUTH=LOGIN AUTH=PLAIN SORT
 THREAD-ORDEREDSUBJECT UIDPLUS QUOTA ACL NAMESPACE STARTTLS

PERMANENTFLAGS (\Seen \Answered \Flagged \Draft \Deleted)

NAMESPACE (("" "/")) NIL NIL 

INBOX folder is lowercased. IMAP folder names are case insensitive. Possible 
issue with IMAP SORT extension.

-----
TEST_5 

Request: 
A005 UID SORT (DATE) ISO-8859-1 ALL  
Response: 
* UID SORT 1 2 
UID SORT Completed
-----
SquirrelMail expects '* SORT 1 2'

Site URL: http://www.icewarp.com


--------------------
MailSite IMAP server
--------------------
Commercial email server for Windows.

Tested 6.1.22.1 version.

CAPABILITY IMAP4rev1 ACL NAMESPACE UIDPLUS AUTH=NTLM AUTH=SCRAM-MD5
 AUTH=CRAM-MD5 

PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)

NAMESPACE (("" "/")) (("#shared/" "/")) NIL 

FETCH response to UID STORE command violates RFC 3501.

Site URL: http://www.rockliffe.com/


-----------------------------
IMAP server ready H mproxyus4
-----------------------------
Unidentified IMAP server or IMAP proxy used by 1&1 Internet Inc.
(http://www.1and1.com and http://www.1und1.de)

CAPABILITY CHILDREN ID IDLE IMAP4 IMAP4rev1 LITERAL+ LOGIN-REFERRALS
 MAILBOX-REFERRALS NAMESPACE UIDPLUS QUOTA STARTTLS AUTH=PLAIN AUTH=LOGIN

http://thread.gmane.org/gmane.mail.squirrelmail.user/26433