238 lines
7.6 KiB
PHP
238 lines
7.6 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly
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}
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if (! class_exists ( 'PostmanSmtpMappings' )) {
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class PostmanSmtpMappings {
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// if an email is in this domain array, it is a known smtp server (easy lookup)
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private static $emailDomain = array (
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// from http://www.serversmtp.com/en/outgoing-mail-server-hostname
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'1and1.com' => 'smtp.1and1.com',
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'airmail.net' => 'smtp.airmail.net',
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'aol.com' => 'smtp.aol.com',
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'Bluewin.ch' => 'Smtpauths.bluewin.ch',
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'Comcast.net' => 'Smtp.comcast.net',
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'Earthlink.net' => 'Smtpauth.earthlink.net',
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'gmail.com' => 'smtp.gmail.com',
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'Gmx.com' => 'mail.gmx.com',
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'Gmx.net' => 'mail.gmx.com',
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'Gmx.us' => 'mail.gmx.com',
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'hotmail.com' => 'smtp.live.com',
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'icloud.com' => 'smtp.mail.me.com',
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'mail.com' => 'smtp.mail.com',
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'ntlworld.com' => 'smtp.ntlworld.com',
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'rocketmail.com' => 'plus.smtp.mail.yahoo.com',
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'rogers.com' => 'smtp.broadband.rogers.com',
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'yahoo.ca' => 'smtp.mail.yahoo.ca',
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'yahoo.co.id' => 'smtp.mail.yahoo.co.id',
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'yahoo.co.in' => 'smtp.mail.yahoo.co.in',
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'yahoo.co.kr' => 'smtp.mail.yahoo.com',
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'yahoo.com' => 'smtp.mail.yahoo.com',
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'yahoo.com.ar' => 'smtp.mail.yahoo.com.ar',
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'yahoo.com.au' => 'smtp.mail.yahoo.com.au',
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'yahoo.com.br' => 'smtp.mail.yahoo.com.br',
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'yahoo.com.cn' => 'smtp.mail.yahoo.com.cn',
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'yahoo.com.hk' => 'smtp.mail.yahoo.com.hk',
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'yahoo.com.mx' => 'smtp.mail.yahoo.com',
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'yahoo.com.my' => 'smtp.mail.yahoo.com.my',
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'yahoo.com.ph' => 'smtp.mail.yahoo.com.ph',
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'yahoo.com.sg' => 'smtp.mail.yahoo.com.sg',
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'yahoo.com.tw' => 'smtp.mail.yahoo.com.tw',
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'yahoo.com.vn' => 'smtp.mail.yahoo.com.vn',
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'yahoo.co.nz' => 'smtp.mail.yahoo.com.au',
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'yahoo.co.th' => 'smtp.mail.yahoo.co.th',
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'yahoo.co.uk' => 'smtp.mail.yahoo.co.uk',
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'yahoo.de' => 'smtp.mail.yahoo.de',
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'yahoo.es' => 'smtp.correo.yahoo.es',
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'yahoo.fr' => 'smtp.mail.yahoo.fr',
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'yahoo.ie' => 'smtp.mail.yahoo.co.uk',
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'yahoo.it' => 'smtp.mail.yahoo.it',
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'zoho.com' => 'smtp.zoho.com',
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// from http://www.att.com/esupport/article.jsp?sid=KB401570&cv=801
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'ameritech.net' => 'outbound.att.net',
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'att.net' => 'outbound.att.net',
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'bellsouth.net' => 'outbound.att.net',
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'flash.net' => 'outbound.att.net',
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'nvbell.net' => 'outbound.att.net',
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'pacbell.net' => 'outbound.att.net',
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'prodigy.net' => 'outbound.att.net',
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'sbcglobal.net' => 'outbound.att.net',
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'snet.net' => 'outbound.att.net',
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'swbell.net' => 'outbound.att.net',
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'wans.net' => 'outbound.att.net'
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);
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// if an email's mx is in this domain array, it is a known smtp server (dns lookup)
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// useful for custom domains that map to a mail service
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private static $mxMappings = array (
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'1and1help.com' => 'smtp.1and1.com',
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'google.com' => 'smtp.gmail.com',
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'Gmx.net' => 'mail.gmx.com',
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'icloud.com' => 'smtp.mail.me.com',
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'hotmail.com' => 'smtp.live.com',
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'mx-eu.mail.am0.yahoodns.net' => 'smtp.mail.yahoo.com',
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// 'mail.protection.outlook.com' => 'smtp.office365.com',
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// 'mail.eo.outlook.com' => 'smtp.office365.com',
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'outlook.com' => 'smtp.office365.com',
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'biz.mail.am0.yahoodns.net' => 'smtp.bizmail.yahoo.com',
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'BIZ.MAIL.YAHOO.com' => 'smtp.bizmail.yahoo.com',
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'hushmail.com' => 'smtp.hushmail.com',
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'gmx.net' => 'mail.gmx.com',
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'mandrillapp.com' => 'smtp.mandrillapp.com',
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'smtp.secureserver.net' => 'relay-hosting.secureserver.net',
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'presmtp.ex1.secureserver.net' => 'smtp.ex1.secureserver.net',
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'presmtp.ex2.secureserver.net' => 'smtp.ex2.secureserver.net',
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'presmtp.ex3.secureserver.net' => 'smtp.ex2.secureserver.net',
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'presmtp.ex4.secureserver.net' => 'smtp.ex2.secureserver.net',
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'htvhosting.com' => 'mail.htvhosting.com'
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);
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public static function getSmtpFromEmail($hostname) {
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reset ( PostmanSmtpMappings::$emailDomain );
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foreach ( PostmanSmtpMappings::$emailDomain as $domain => $smtp ) {
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if (strcasecmp ( $hostname, $domain ) == 0) {
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return $smtp;
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}
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}
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return false;
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}
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public static function getSmtpFromMx($mx) {
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reset ( PostmanSmtpMappings::$mxMappings );
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foreach ( PostmanSmtpMappings::$mxMappings as $domain => $smtp ) {
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if (PostmanUtils::endswith ( $mx, $domain )) {
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return $smtp;
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}
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}
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return false;
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}
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}
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}
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if (! class_exists ( 'PostmanSmtpDiscovery' )) {
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class PostmanSmtpDiscovery {
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// private instance variables
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public $isGoogle;
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public $isGoDaddy;
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public $isWellKnownDomain;
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private $smtpServer;
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private $primaryMx;
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private $email;
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private $domain;
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/**
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* Constructor
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*
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* @param mixed $email
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*/
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public function __construct($email) {
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$this->email = $email;
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$this->determineSmtpServer ( $email );
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$this->isGoogle = $this->smtpServer == 'smtp.gmail.com';
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$this->isGoDaddy = $this->smtpServer == 'relay-hosting.secureserver.net';
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}
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/**
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* The SMTP server we suggest to use - this is determined
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* by looking up the MX hosts for the domain.
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*/
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public function getSmtpServer() {
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return $this->smtpServer;
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}
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public function getPrimaryMx() {
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return $this->primaryMx;
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}
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/**
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*
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* @param mixed $email
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* @return string|bool
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*/
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private function validateEmail($email) {
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return PostmanUtils::validateEmail ( $email );
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}
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private function determineSmtpServer($email) {
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$hostname = substr ( strrchr ( $email, "@" ), 1 );
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$this->domain = $hostname;
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$smtp = PostmanSmtpMappings::getSmtpFromEmail ( $hostname );
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if ($smtp) {
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$this->smtpServer = $smtp;
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$this->isWellKnownDomain = true;
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return true;
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} else {
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$host = strtolower ( $this->findMxHostViaDns ( $hostname ) );
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if ($host) {
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$this->primaryMx = $host;
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$smtp = PostmanSmtpMappings::getSmtpFromMx ( $host );
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if ($smtp) {
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$this->smtpServer = $smtp;
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return true;
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} else {
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return false;
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}
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} else {
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return false;
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}
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}
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}
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/**
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* Uses getmxrr to retrieve the MX records of a hostname
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*
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* @param mixed $hostname
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* @return mixed|boolean
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*/
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private function findMxHostViaDns($hostname) {
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if (function_exists ( 'getmxrr' )) {
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$b_mx_avail = getmxrr ( $hostname, $mx_records, $mx_weight );
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} else {
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$b_mx_avail = $this->getmxrr ( $hostname, $mx_records, $mx_weight );
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}
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if ($b_mx_avail && sizeof ( $mx_records ) > 0) {
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// copy mx records and weight into array $mxs
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$mxs = array ();
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for($i = 0; $i < count ( $mx_records ); $i ++) {
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$mxs [$mx_weight [$i]] = $mx_records [$i];
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}
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// sort array mxs to get servers with highest prio
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ksort ( $mxs, SORT_NUMERIC );
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reset ( $mxs );
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$mxs_vals = array_values ( $mxs );
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return array_shift ( $mxs_vals );
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} else {
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return false;
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}
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}
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/**
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* This is a custom implementation of mxrr for Windows PHP installations
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* which don't have this method natively.
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*
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* @param mixed $hostname
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* @param mixed $mxhosts
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* @param mixed $mxweight
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* @return boolean
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*/
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function getmxrr($hostname, &$mxhosts, &$mxweight) {
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if (! is_array ( $mxhosts )) {
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$mxhosts = array ();
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}
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$hostname = escapeshellarg ( $hostname );
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if (! empty ( $hostname )) {
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$output = "";
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@exec ( "nslookup.exe -type=MX $hostname.", $output );
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$imx = - 1;
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foreach ( $output as $line ) {
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$imx ++;
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$parts = "";
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if (preg_match ( "/^$hostname\tMX preference = ([0-9]+), mail exchanger = (.*)$/", $line, $parts )) {
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$mxweight [$imx] = $parts [1];
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$mxhosts [$imx] = $parts [2];
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}
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}
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return ($imx != - 1);
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}
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return false;
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}
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}
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}
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