SqWebMail 4.0 released.

Note - at press time Sourceforge's project server is down and the download 
page cannot be updated.  Go to http://sourceforge.net/projects/courier/ in 
order to download this release.

Note - if using Courier-IMAP, this update requires a concurrent upgrade to 
Courier-IMAP 3.0.

Changes in theis release:

• Virtual shared folders

This is a new implementation of shared folders, based on IMAP-compatible 
access control lists. The existing shared folder implementation, based on 
filesystem permissions, is still available.  Filesystem-based shared folders 
can only be used with system accounts, and they do not work with virtual 
mail accounts.  Virtual shared folders work with virtual accounts, but not 
system accounts.

• Webmail ACL support

Access control lists may be edited with any ACL-capable mail client. 
Alternatively, access control lists may be edited via webmail.

• East Asian character sets

Several bugs in East Asian character set support have been fixed, and many 
new character set mappings have been added, including euc-jp, ksx-1001, 
ISO-2022-KR, ISO-2002-JP-1

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