腐ったEmailアドレスに対応するためのCakeEmail Hack.

AppCakeEmail.php

<?php

App::uses('CakeEmail', 'Network/Email');

class AppCakeEmail extends CakeEmail {

	protected $_emailPattern = null;

/**
 * 
 * @param string $regex
 * @return string|AppCakeEmail
 */
	public function emailPattern($regex = null) {
		if (is_null($regex)) {
			return $this->_emailPattern;
		}
		$this->_emailPattern = $regex;
		return $this;
	}

/**
 * Set email
 *
 * @param string $varName
 * @param string|array $email
 * @param string $name
 * @return CakeEmail $this
 * @throws SocketException
 */
	protected function _setEmail($varName, $email, $name) {
		if (!is_array($email)) {
			if (!Validation::email($email, false, $this->_emailPattern)) {
				throw new SocketException(__d('cake_dev', 'Invalid email: "%s"', $email));
			}
			if ($name === null) {
				$name = $email;
			}
			$this->{$varName} = array($email => $name);
			return $this;
		}
		$list = array();
		foreach ($email as $key => $value) {
			if (is_int($key)) {
				$key = $value;
			}
			if (!Validation::email($key, false, $this->_emailPattern)) {
				throw new SocketException(__d('cake_dev', 'Invalid email: "%s"', $key));
			}
			$list[$key] = $value;
		}
		$this->{$varName} = $list;
		return $this;
	}

/**
 * Add email
 *
 * @param string $varName
 * @param string|array $email
 * @param string $name
 * @return CakeEmail $this
 * @throws SocketException
 */
	protected function _addEmail($varName, $email, $name) {
		if (!is_array($email)) {
			if (!Validation::email($email, false, $this->_emailPattern)) {
				throw new SocketException(__d('cake_dev', 'Invalid email: "%s"', $email));
			}
			if ($name === null) {
				$name = $email;
			}
			$this->{$varName}[$email] = $name;
			return $this;
		}
		$list = array();
		foreach ($email as $key => $value) {
			if (is_int($key)) {
				$key = $value;
			}
			if (!Validation::email($key, false, $this->_emailPattern)) {
				throw new SocketException(__d('cake_dev', 'Invalid email: "%s"', $key));
			}
			$list[$key] = $value;
		}
		$this->{$varName} = array_merge($this->{$varName}, $list);
		return $this;
	}

/**
 * Reset all EmailComponent internal variables to be able to send out a new email.
 *
 * @return CakeEmail $this
 */
	public function reset() {
		$this->_emailPattern = null;
		return parent::reset();
	}

}

AppCakeEmailTest.php

<?php
App::uses('AppCakeEmail', 'Lib');

/*
 * EmailConfig class
 *
 */
class AppEmailConfig {

/**
 * test config
 *
 * @var string
 */
	public $test = array(
		'from' => array('some@example.com' => 'My website'),
		'to' => array('test@example.com' => 'Testname'),
		'subject' => 'Test mail subject',
		'transport' => 'Debug',
		'theme' => 'TestTheme',
		'helpers' => array('Html', 'Form'),
	);

}

/**
 * CakeEmailTest class
 *
 * @param AppCakeEmail $CakeEmail
 */
class AppCakeEmailTest extends CakeTestCase {

/**
 * setUp
 *
 * @return void
 */
	public function setUp() {
		parent::setUp();
		$this->CakeEmail = new AppCakeEmail();

		App::build(array(
			'View' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'View' . DS)
		));
	}

/**
 * tearDown method
 *
 * @return void
 */
	public function tearDown() {
		parent::tearDown();
		App::build();
	}

	public function testEmailPattern() {
		$regex = '/.+@.+\..+/i';
		$this->assertNull($this->CakeEmail->emailPattern());
		$this->assertSame($regex, $this->CakeEmail->emailPattern($regex)->emailPattern());
	}

	public function testCustomEmailValidation() {
		$regex = '/^[\.a-z0-9!#$%&\'*+\/=?^_`{|}~-]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]{2,6}$/i';
		$email = 'pass.@example.com';
		$additionalEmail = 'pass..old.docomo@example.com';
		$emails = array('pass.@example.com', 'pass..old.docomo@example.com');
		$additionalEmails = array(
			'.extend.@example.com',
			'.docomo@example.com',
		);

		$this->CakeEmail->emailPattern($regex)->to($email);
		$this->assertSame(array(
			'pass.@example.com' => 'pass.@example.com',
		), $this->CakeEmail->to());

		$this->CakeEmail->addTo($additionalEmail);
		$this->assertSame(array(
			'pass.@example.com' => 'pass.@example.com',
			'pass..old.docomo@example.com' => 'pass..old.docomo@example.com',
		), $this->CakeEmail->to());

		$this->CakeEmail->emailPattern($regex)->to($emails);
		$this->assertSame(array(
			'pass.@example.com' => 'pass.@example.com',
			'pass..old.docomo@example.com' => 'pass..old.docomo@example.com',
		), $this->CakeEmail->to());

		$this->CakeEmail->addTo($additionalEmails);
		$this->assertSame(array(
			'pass.@example.com' => 'pass.@example.com',
			'pass..old.docomo@example.com' => 'pass..old.docomo@example.com',
			'.extend.@example.com' => '.extend.@example.com',
			'.docomo@example.com' => '.docomo@example.com',
		), $this->CakeEmail->to());
	}

	public function testPassedEmail() {
		$regex = '/^[\.a-z0-9!#$%&\'*+\/=?^_`{|}~-]+@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]{2,6}$/i';

		$check = "yuri-rico/m829@q.vodafone.ne.jp";
		$this->CakeEmail->to("include-dash/slash@example.com");
		$this->CakeEmail->emailPattern($regex)->to($check);
	}
}

fu_k d_como!

コアに取り込んで欲しいけど、なんで腐ったメールアドレスを考慮する必要があるのか説明してチケット書くの面倒 orz

PRが通りましたので、CakePHP 2.4.0以降ではハックの必要が無くなります。