lib/classes/Swift/Plugins/PopBeforeSmtpPlugin.php
public function connect()
    {
        if (isset($this->connection)) {
            $this->connection->connect();
        } else {
            if (!isset($this->socket)) {
                if (!$socket = fsockopen(
                    $this->getHostString(), $this->port, $errno, $errstr, $this->timeout)) {
                    throw new Swift_Plugins_Pop_Pop3Exception(
                        sprintf('Failed to connect to POP3 host [%s]: %s', $this->host, $errstr)
                    );
                }
                $this->socket = $socket;

                if (false === $greeting = fgets($this->socket)) {
                    throw new Swift_Plugins_Pop_Pop3Exception(
                        sprintf('Failed to connect to POP3 host [%s]', trim($greeting))
                    );
                }

                $this->assertOk($greeting);

                if ($this->username) {
                    $this->command(sprintf("USER %s\r\n", $this->username));
                    $this->command(sprintf("PASS %s\r\n", $this->password));
                }
            }
        }
    }
public function connect()
    {
        if (isset($this->connection)) {
            $this->connection->connect();
        } else {
            if (!isset($this->socket)) {
                if (!$socket = fsockopen(
                    $this->getHostString(), $this->port, $errno, $errstr, $this->timeout)) {
                    throw new Swift_Plugins_Pop_Pop3Exception(
                        sprintf('Failed to connect to POP3 host [%s]: %s', $this->host, $errstr)
                    );
                }
                $this->socket = $socket;

                if (false === $greeting = fgets($this->socket)) {
                    throw new Swift_Plugins_Pop_Pop3Exception(
                        sprintf('Failed to connect to POP3 host [%s]', trim($greeting))
                    );
                }

                $this->assertOk($greeting);

                if ($this->username) {
                    $this->command(sprintf("USER %s\r\n", $this->username));
                    $this->command(sprintf("PASS %s\r\n", $this->password));
                }
            }
        }
    }
public function connect ( ) { if ( isset ( $ this -> connection ) ) { $ this -> connection -> connect ( ) ; } else { if ( ! isset ( $ this -> socket ) ) { if ( ! $ socket = fsockopen ( $ this -> getHostString ( ) , $ this -> port , $ errno , $ errstr , $ this -> timeout ) ) { throw new Swift_Plugins_Pop_Pop3Exception ( sprintf ( 'Failed to connect to POP3 host [%s]: %s' , $ this -> host , $ errstr ) ) ; } $ this -> socket = $ socket ; if ( false === $ greeting = fgets ( $ this -> socket ) ) { throw new Swift_Plugins_Pop_Pop3Exception ( sprintf ( 'Failed to connect to POP3 host [%s]' , trim ( $ greeting ) ) ) ; } $ this -> assertOk ( $ greeting ) ; if ( $ this -> username ) { $ this -> command ( sprintf ( "USER %s\r\n" , $ this -> username ) ) ; $ this -> command ( sprintf ( "PASS %s\r\n" , $ this -> password ) ) ; } } } }
Connect to the POP3 host and authenticate.

@throws Swift_Plugins_Pop_Pop3Exception if connection fails
Connect to the POP3 host and authenticate .