Class SmtpTransport
Send mail using SMTP protocol
Property Summary
- 
        $_config protectedarrayRuntime config 
- 
        $_configInitialized protectedboolWhether the config property has already been configured with defaults 
- 
        $_content protectedarrayContent of email to return 
- 
        $_defaultConfig protectedarrayDefault config for this class 
- 
        $_lastResponse protectedarrayThe response of the last sent SMTP command. 
- 
        $_socket protectedCake\Network\SocketSocket to SMTP server 
Method Summary
- 
          __construct() publicConstructor 
- 
          __destruct() publicDestructor 
- 
          _auth() protectedSend authentication 
- 
          _bufferResponseLines() protectedParses and stores the response lines in 'code' => 'message'format.
- 
          _configDelete() protectedDeletes a single config key. 
- 
          _configRead() protectedReads a config key. 
- 
          _configWrite() protectedWrites a config key. 
- 
          _connect() protectedConnect to SMTP Server 
- 
          _disconnect() protectedDisconnect 
- 
          _generateSocket() protectedHelper method to generate socket 
- 
          _headersToString() protectedHelp to convert headers in string 
- 
          _prepareFromAddress() protectedPrepares the fromemail address.
- 
          _prepareFromCmd() protectedPrepares the MAIL FROMSMTP command.
- 
          _prepareMessage() protectedPrepares the message body. 
- 
          _prepareMessageHeaders() protectedPrepares the message headers. 
- 
          _prepareRcptCmd() protectedPrepares the RCPT TOSMTP command.
- 
          _prepareRecipientAddresses() protectedPrepares the recipient email addresses. 
- 
          _sendData() protectedSend Data 
- 
          _sendRcpt() protectedSend emails 
- 
          _smtpSend() protectedProtected method for sending data to SMTP connection 
- 
          config() public deprecatedGets/Sets the config. 
- 
          configShallow() publicMerge provided config with existing config. Unlike config()which does a recursive merge for nested keys, this method does a simple merge.
- 
          connect() publicConnect to the SMTP server. 
- 
          connected() publicCheck whether an open connection to the SMTP server is available. 
- 
          disconnect() publicDisconnect from the SMTP server. 
- 
          getConfig() publicReturns the config. 
- 
          getLastResponse() publicReturns the response of the last sent SMTP command. 
- 
          send() publicSend mail 
- 
          setConfig() publicSets the config. 
Method Detail
__construct() ¶ public
__construct(array $config = [])Constructor
Parameters
- 
                array$config optional
- Configuration options. 
__destruct() ¶ public
__destruct()Destructor
Tries to disconnect to ensure that the connection is being terminated properly before the socket gets closed.
_auth() ¶ protected
_auth(): voidSend authentication
Returns
voidThrows
Cake\Network\Exception\SocketException_bufferResponseLines() ¶ protected
_bufferResponseLines(array $responseLines): voidParses and stores the response lines in 'code' => 'message' format.
Parameters
- 
                array$responseLines
- Response lines to parse. 
Returns
void_configDelete() ¶ protected
_configDelete(string $key): voidDeletes a single config key.
Parameters
- 
                string$key
- Key to delete. 
Returns
voidThrows
Cake\Core\Exception\Exceptionif attempting to clobber existing config
_configRead() ¶ protected
_configRead(string|null $key): mixedReads a config key.
Parameters
- 
                string|null$key
- Key to read. 
Returns
mixed_configWrite() ¶ protected
_configWrite(string|array $key, mixed $value, bool|string $merge = false): voidWrites a config key.
Parameters
- 
                string|array$key
- Key to write to. 
- 
                mixed$value
- Value to write. 
- 
                bool|string$merge optional
- True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false. 
Returns
voidThrows
Cake\Core\Exception\Exceptionif attempting to clobber existing config
_connect() ¶ protected
_connect(): voidConnect to SMTP Server
Returns
voidThrows
Cake\Network\Exception\SocketException_disconnect() ¶ protected
_disconnect(): voidDisconnect
Returns
voidThrows
Cake\Network\Exception\SocketException_generateSocket() ¶ protected
_generateSocket(): voidHelper method to generate socket
Returns
voidThrows
Cake\Network\Exception\SocketException_headersToString() ¶ protected
_headersToString(array $headers, string $eol = "\r\n"): stringHelp to convert headers in string
Parameters
- 
                array$headers
- Headers in format key => value 
- 
                string$eol optional
- End of line string. 
Returns
string_prepareFromAddress() ¶ protected
_prepareFromAddress(Cake\Mailer\Email $email): arrayPrepares the from email address.
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
array_prepareFromCmd() ¶ protected
_prepareFromCmd(string $email): stringPrepares the MAIL FROM SMTP command.
Parameters
- 
                string$email
- The email address to send with the command. 
Returns
string_prepareMessage() ¶ protected
_prepareMessage(Cake\Mailer\Email $email): stringPrepares the message body.
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
string_prepareMessageHeaders() ¶ protected
_prepareMessageHeaders(Cake\Mailer\Email $email): arrayPrepares the message headers.
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
array_prepareRcptCmd() ¶ protected
_prepareRcptCmd(string $email): stringPrepares the RCPT TO SMTP command.
Parameters
- 
                string$email
- The email address to send with the command. 
Returns
string_prepareRecipientAddresses() ¶ protected
_prepareRecipientAddresses(Cake\Mailer\Email $email): arrayPrepares the recipient email addresses.
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
array_sendData() ¶ protected
_sendData(Cake\Mailer\Email $email): voidSend Data
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
voidThrows
Cake\Network\Exception\SocketException_sendRcpt() ¶ protected
_sendRcpt(Cake\Mailer\Email $email): voidSend emails
Parameters
- 
                Cake\Mailer\Email$email
- Cake Email 
Returns
voidThrows
Cake\Network\Exception\SocketException_smtpSend() ¶ protected
_smtpSend(string|null $data, string|bool $checkCode = '250'): string|nullProtected method for sending data to SMTP connection
Parameters
- 
                string|null$data
- Data to be sent to SMTP server 
- 
                string|bool$checkCode optional
- Code to check for in server response, false to skip 
Returns
string|nullThe matched code, or null if nothing matched
Throws
Cake\Network\Exception\SocketExceptionconfig() ¶ public
config(string|array|null $key = null, mixed|null $value = null, bool $merge = true): mixedGets/Sets the config.
Usage
Reading the whole config:
$this->config();Reading a specific value:
$this->config('key');Reading a nested value:
$this->config('some.nested.key');Setting a specific value:
$this->config('key', $value);Setting a nested value:
$this->config('some.nested.key', $value);Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);Parameters
- 
                string|array|null$key optional
- The key to get/set, or a complete array of configs. 
- 
                mixed|null$value optional
- The value to set. 
- 
                bool$merge optional
- Whether to recursively merge or overwrite existing config, defaults to true. 
Returns
mixedConfig value being read, or the object itself on write operations.
Throws
Cake\Core\Exception\ExceptionWhen trying to set a key that is invalid.
configShallow() ¶ public
configShallow(string|array $key, mixed|null $value = null): $thisMerge provided config with existing config. Unlike config() which does
a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->configShallow('key', $value);Setting a nested value:
$this->configShallow('some.nested.key', $value);Updating multiple config settings at the same time:
$this->configShallow(['one' => 'value', 'another' => 'value']);Parameters
- 
                string|array$key
- The key to set, or a complete array of configs. 
- 
                mixed|null$value optional
- The value to set. 
Returns
$thisconnect() ¶ public
connect(): voidConnect to the SMTP server.
This method tries to connect only in case there is no open connection available already.
Returns
voidconnected() ¶ public
connected(): boolCheck whether an open connection to the SMTP server is available.
Returns
booldisconnect() ¶ public
disconnect(): voidDisconnect from the SMTP server.
This method tries to disconnect only in case there is an open connection available.
Returns
voidgetConfig() ¶ public
getConfig(string|null $key = null): mixedReturns the config.
Usage
Reading the whole config:
$this->getConfig();Reading a specific value:
$this->getConfig('key');Reading a nested value:
$this->getConfig('some.nested.key');Parameters
- 
                string|null$key optional
- The key to get or null for the whole config. 
Returns
mixedConfig value being read.
getLastResponse() ¶ public
getLastResponse(): arrayReturns the response of the last sent SMTP command.
A response consists of one or more lines containing a response code and an optional response message text:
[
    [
        'code' => '250',
        'message' => 'mail.example.com'
    ],
    [
        'code' => '250',
        'message' => 'PIPELINING'
    ],
    [
        'code' => '250',
        'message' => '8BITMIME'
    ],
    // etc...
]Returns
arraysend() ¶ public
send(Cake\Mailer\Email $email): arraySend mail
Parameters
- 
                Cake\Mailer\Email$email
- Email instance 
Returns
arrayThrows
Cake\Network\Exception\SocketExceptionsetConfig() ¶ public
setConfig(string|array $key, mixed|null $value = null, bool $merge = true): $thisSets the config.
Usage
Setting a specific value:
$this->setConfig('key', $value);Setting a nested value:
$this->setConfig('some.nested.key', $value);Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);Parameters
- 
                string|array$key
- The key to set, or a complete array of configs. 
- 
                mixed|null$value optional
- The value to set. 
- 
                bool$merge optional
- Whether to recursively merge or overwrite existing config, defaults to true. 
Returns
$thisThrows
Cake\Core\Exception\ExceptionWhen trying to set a key that is invalid.
Property Detail
$_configInitialized ¶ protected
Whether the config property has already been configured with defaults
Type
bool