-----------------
'cyrus' settings:
-----------------
+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).
+
imap_server_type = cyrus
default_folder_prefix = <none> (is set to empty string)
trash_folder = INBOX.Trash
--------------
'uw' settings:
--------------
+Server supports server side sorting. Plain text logins are disabled by default.
+
+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)
+
imap_server_type = uw
default_folder_prefix = mail/
trash_folder = Trash
--------------------
'exchange' settings:
--------------------
+Server does not support server side sorting.
imap_server_type = exchange
default_folder_prefix = <none> (is set to empty string)
trash_folder = INBOX/Deleted Items
-------------------
'courier' settings:
-------------------
+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)
+
+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/
+
imap_server_type = courier
default_folder_prefix = INBOX.
trash_folder = Trash