WORDPRESS BEST PLUGIN find WP Mail SMTP is a very good WordPress sending mail plugin.
The function description:
Reconfigure wp_mail() to replace the default host function mail() .
1. custom e-mail address and mail name;
2. you can choose the way of sending e-mail, there are two ways: smtp and PHP’s mail ();
3. custom smtp host;
4. custom smtp port;
5. select how to send e-mail, support ssl;
6. To verify custom smtp;
7. If you selected verification smtp, you need to enter the account and password, to ensure that the validation is successful and assur sending mail correctly.
WordPress sending mail plugin: WP Mail SMTP is relatively simple to use, after installing the plugin, all settings can be set in one page.