PHP sending mail system, custom server, username, password and port. The above must be filled in correctly to send the email successfully. <select id="d3"><br>
<option value="1">126 Email</option><br>
<option value="2">163 Email</option><br>
<option value="3">qqmail</option><br>
</select>Send email demo: http://www.sucaihuo.com/php/1003.html
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