PHPwebmail is a Web-based IMAP and SMTP mail client. Often it is not possible to make outside mail connections from networks behind strict firewalls, or to configure a regular mail client (for example in an Internet cafe). With PHPwebmail a mail client only needs a WWW connection to the mailserver. Specifically it only needs a connection to the webserver hosting PHPwebmail. Most of the times the Web and mail server will be the same machine but PHPwebmail can connect to other mailservers as well as long as an IMAP connection between these two machines is allowed.
New Version 2.3.2
Bugfix: When using IMAP folders in a subdirectory, "Move mail to" always showed
INBOX selected and not the name of the actual folder.
New Version 2.3.1
Security update: send_mail.php now uses the move_uploaded_file() function
instead of copy(). On some systems a vulnerability might have made it
possible for a user to attach system files of the machine running PHPwebmail.
Thanks for the hint to Nasir Simbolon.