SquirrelMail - Webmail for Nuts!

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Visit Preferences to set your user name

!SquirrelMail is capable of ''retrieving'' e-mail from a POP3 server, via the included Mail Fetch plugin. However, !SquirrelMail requires an IMAP server to run atop of. The IMAP server store the e-mails and is also used for authentication, so if there is no IMAP server, !SquirrelMail ''can not'' be used.

The difference between IMAP and POP3 is that the IMAP protocol store e-mails on a server, and the POP3 protocol is used to retrieve messages from a server, storing them locally in the client used to access the e-mail account. !SquirrelMail, as most (if not all) web mail applications, is designed to give an end user access to his/hers e-mail regardless of location. Obviously, moving (downloading) the e-mails from a server to a particular computer would defeat this purpose.

Many ISPs allow access to e-mail accounts through both the IMAP and POP3 protocols (check with the ISP for details). If an end user wants to access an account using both an IMAP client, such as !SquirrelMail, and a POP3 client, the POP3 client must be configured to leave all e-mails at the server, only storing copies of them locally. There usually is a "leave e-mails on server" (or similar) option in the POP3 client configuration.

! TLS POP Fetch
Not a documented feature, but you can type ssl://host and change the port number, and it will work assuming your PHP version has SSL enabled. tls:// can also be used too. This is because the fsockopen call doesn't attempt to specify a protocol, so you can "cheat" the code by setting it in the hostname

For example:

server=tls://pop.gmail.com
port=995

[source|http://comments.gmane.org/gmane.mail.squirrelmail.plugins/12569]

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