增加加密 SMTP 配置

application/config/email.php

@@ -18,6 +18,7 @@
 |	smtp_pass			No Default			None					SMTP Password.
 |	smtp_port			25					None					SMTP Port.
 |	smtp_timeout		5					None					SMTP Timeout (in seconds).
+|	smtp_crypto			No Default			tls or ssl				SMTP Encryption
 |	wordwrap			TRUE				TRUE or FALSE (boolean)	Enable word-wrap.
 |	wrapchars			76											Character count to wrap at.
 |	mailtype			text				text or html			Type of mail. If you send HTML email you must send it as a complete web page. Make sure you don't have any relative links or relative image paths otherwise they will not work.
@@ -39,6 +40,7 @@
 	$config['smtp_user'] = IP_INSTANCE_SMTP_USER;
 	$config['smtp_pass'] = IP_INSTANCE_SMTP_PASS;
 	$config['smtp_port'] = IP_INSTANCE_SMTP_PORT;
+	$config['smtp_crypto'] = IP_INSTANCE_SMTP_SSL;
 }
 
 $config['wordwrap'] = FALSE;

config.example.php

@@ -94,6 +94,11 @@
  */
 define('IP_SMTP_PORT', '');
 
+/**
+ * SMTP加密模式（tls、ssl，空为不加密）
+ */
+define('IP_SMTP_SSL', '');
+
 /**
  * 反向代理IP列表
  */

index.php

@@ -39,6 +39,7 @@
 define('IP_INSTANCE_SMTP_USER', IP_SMTP_USER);
 define('IP_INSTANCE_SMTP_PASS', IP_SMTP_PASS);
 define('IP_INSTANCE_SMTP_PORT', IP_SMTP_PORT);
+define('IP_INSTANCE_SMTP_SSL', defined('IP_SMTP_SSL') ? IP_SMTP_SSL : '');
 define('IP_INSTANCE_API_ACCESS_KEY', IP_DEFAULT_API_ACCESS_KEY);
 define('IP_INSTANCE_ID', 0);
 define('IP_INSTANCE_KEY', IP_ENCRYPTION_KEY);