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Disabling POP3 service on Sendmail
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IMAP_OPEN(3) 1 IMAP_OPEN(3) imap_open - Open anIMAPstream to a mailbox SYNOPSIS
resource imap_open NULL (string $mailbox, string $username, string $password, [int $options], [int $n_retries], [array $params]) DESCRIPTION
Opens an IMAP stream to a $mailbox. This function can also be used to open streams to POP3 and NNTP servers, but some functions and features are only available on IMAP servers. PARAMETERS
o $mailbox - A mailbox name consists of a server and a mailbox path on this server. The special name INBOX stands for the current users per- sonal mailbox. Mailbox names that contain international characters besides those in the printable ASCII space have to be encoded width imap_utf7_encode(3). The server part, which is enclosed in '{' and '}', consists of the servers name or ip address, an optional port (prefixed by ':'), and an optional protocol specification (prefixed by '/'). The server part is mandatory in all mailbox parameters. All names which start with { are remote names, and are in the form "{" remote_system_name [":" port] [flags] "}" [mailbox_name] where: o remote_system_name - Internet domain name or bracketed IP address of server. o port - optional TCP port number, default is the default port for that service o flags - optional flags, see following table. o mailbox_name - remote mailbox name, default is INBOX Optional flags for names +---------------------------------------------+---------------------------------------------------+ | Flag | | | | | | | Description | | | | +---------------------------------------------+---------------------------------------------------+ | | | | /service= service | | | | | | | mailbox access service, default is "imap" | | | | | | | | /user= user | | | | | | | remote user name for login on the server | | | | | | | | /authuser= user | | | | | | | remote authentication user; if specified this is | | | the user name whose password is used (e.g. admin- | | | istrator) | | | | | | | | /anonymous | | | | | | | remote access as anonymous user | | | | | | | | /debug | | | | | | | record protocol telemetry in application's debug | | | log | | | | | | | | /secure | | | | | | | do not transmit a plaintext password over the | | | network | | | | | | | |/imap, /imap2, /imap2bis, /imap4, /imap4rev1 | | | | | | | equivalent to /service=imap | | | | | | | | /pop3 | | | | | | | equivalent to /service=pop3 | | | | | | | | /nntp | | | | | | | equivalent to /service=nntp | | | | | | | | /norsh | | | | | | | do not use rsh or ssh to establish a preauthenti- | | | cated IMAP session | | | | | | | | /ssl | | | | | | | use the Secure Socket Layer to encrypt the ses- | | | sion | | | | | | | | /validate-cert | | | | | | | validate certificates from TLS/SSL server (this | | | is the default behavior) | | | | | | | | /novalidate-cert | | | | | | | do not validate certificates from TLS/SSL server, | | | needed if server uses self-signed certificates | | | | | | | | /tls | | | | | | | force use of start-TLS to encrypt the session, | | | and reject connection to servers that do not sup- | | | port it | | | | | | | | /notls | | | | | | | do not do start-TLS to encrypt the session, even | | | with servers that support it | | | | | | | | /readonly | | | | | | | request read-only mailbox open (IMAP only; | | | ignored on NNTP, and an error with SMTP and POP3) | | | | +---------------------------------------------+---------------------------------------------------+ o $username - The user name o $password - The password associated with the $username o $options - The $options are a bit mask with one or more of the following: o OP_READONLY - Open mailbox read-only o OP_ANONYMOUS - Don't use or update a .newsrc for news (NNTP only) o OP_HALFOPEN - For IMAP and NNTP names, open a connection but don't open a mailbox. o CL_EXPUNGE - Expunge mailbox automatically upon mailbox close (see also imap_delete(3) and imap_expunge(3)) o OP_DEBUG - Debug protocol negotiations o OP_SHORTCACHE - Short ( elt-only) caching o OP_SILENT - Don't pass up events (internal use) o OP_PROTOTYPE - Return driver prototype o OP_SECURE - Don't do non-secure authentication o $n_retries - Number of maximum connect attempts o $params - Connection parameters, the following (string) keys maybe used to set one or more connection parameters: o DISABLE_AUTHENTICATOR - Disable authentication properties RETURN VALUES
Returns an IMAP stream on success or FALSE on error. CHANGELOG
+--------+------------------+ |Version | | | | | | | Description | | | | +--------+------------------+ | 5.3.2 | | | | | | | $params added | | | | | 5.2.0 | | | | | | | $n_retries added | | | | +--------+------------------+ EXAMPLES
Example #1 Different use of imap_open(3) <?php // To connect to an IMAP server running on port 143 on the local machine, // do the following: $mbox = imap_open("{localhost:143}INBOX", "user_id", "password"); // To connect to a POP3 server on port 110 on the local server, use: $mbox = imap_open ("{localhost:110/pop3}INBOX", "user_id", "password"); // To connect to an SSL IMAP or POP3 server, add /ssl after the protocol // specification: $mbox = imap_open ("{localhost:993/imap/ssl}INBOX", "user_id", "password"); // To connect to an SSL IMAP or POP3 server with a self-signed certificate, // add /ssl/novalidate-cert after the protocol specification: $mbox = imap_open ("{localhost:995/pop3/ssl/novalidate-cert}", "user_id", "password"); // To connect to an NNTP server on port 119 on the local server, use: $nntp = imap_open ("{localhost:119/nntp}comp.test", "", ""); // To connect to a remote server replace "localhost" with the name or the // IP address of the server you want to connect to. ?> Example #2 imap_open(3) example <?php $mbox = imap_open("{imap.example.org:143}", "username", "password"); echo "<h1>Mailboxes</h1> "; $folders = imap_listmailbox($mbox, "{imap.example.org:143}", "*"); if ($folders == false) { echo "Call failed<br /> "; } else { foreach ($folders as $val) { echo $val . "<br /> "; } } echo "<h1>Headers in INBOX</h1> "; $headers = imap_headers($mbox); if ($headers == false) { echo "Call failed<br /> "; } else { foreach ($headers as $val) { echo $val . "<br /> "; } } imap_close($mbox); ?> SEE ALSO
imap_close(3). PHP Documentation Group IMAP_OPEN(3)
