phpsmtp发送邮件

php通过smtp发送邮件需要通过一个类smtp

发邮件的代码如下：

1. require_once 'smtp.php';
3. ##########################################
4. $smtpserver = "smtp.sina.com";//SMTP服务器
5. $smtpserverport = 25;//SMTP服务器端口
6. $smtpusermail = "god_chen@sina.com";//SMTP服务器的用户邮箱
7. $smtpemailto = "45323333@qq.com";//发送给谁
8. $smtpuser = "name";//SMTP服务器的用户帐号
9. $smtppass = "123456";//SMTP服务器的用户密码
10. $mailsubject = "中文";//邮件主题
11. $mailbody = "

    中文

    测试下能淤泥新年感";//邮件内容
12. $mailtype = "HTML";//邮件格式（HTML/TXT）,TXT为文本邮件
13. ##########################################
14. $smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.
15. $smtp->debug = FALSE;//是否显示发送的调试信息
16. $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype)

smtp类的源码如下：

1. class smtp
2. {
3. /* Public Variables */
4. var $smtp_port;
5. var $time_out;
6. var $host_name;
7. var $log_file;
8. var $relay_host;
9. var $debug;
10. var $auth;
11. var $user;
12. var $pass;
14. /* Private Variables */
15. var $sock;
17. /* Constractor */
18. function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)
19. {
20. $this->debug = FALSE;
21. $this->smtp_port = $smtp_port;
22. $this->relay_host = $relay_host;
23. $this->time_out = 30; //is used in fsockopen()
24. $this->auth = $auth;//auth
25. $this->user = $user;
26. $this->pass = $pass;
27. $this->host_name = "localhost"; //is used in HELO command
28. $this->log_file = "";
29. $this->sock = FALSE;
30. }
32. /* Main Function */
33. function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
34. {
35. $mail_from = $this->get_address($this->strip_comment($from));
36. $body = ereg_replace("(^|(\r\n))(\.)", "\1.\3", $body);
37. $header = "MIME-Version:1.0\r\n";
38. if($mailtype=="HTML")
39. {
40. $header .= "Content-Type:text/html\r\n";
41. }
42. $header .= "To: ".$to."\r\n";
43. if ($cc != "")
44. {
45. $header .= "Cc: ".$cc."\r\n";
46. }
47. $header .= "From: $from<".$from.">\r\n";
48. $header .= "Subject: ".$subject."\r\n";
49. $header .= $additional_headers;
50. $header .= "Date: ".date("r")."\r\n";
51. $header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
52. list($msec, $sec) = explode(" ", microtime());
53. $header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
54. $TO = explode(",", $this->strip_comment($to));
56. if ($cc != "")
57. {
58. $TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
59. }
60. if ($bcc != "")
61. {
62. $TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
63. }
64. $sent = TRUE;
65. foreach ($TO as $rcpt_to)
66. {
67. $rcpt_to = $this->get_address($rcpt_to);
68. if (!$this->smtp_sockopen($rcpt_to))
69. {
70. $this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
71. $sent = FALSE;
72. continue;
73. }
74. if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body))
75. {
76. $this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
77. }
78. else
79. {
80. $this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
81. $sent = FALSE;
82. }
83. fclose($this->sock);
84. $this->log_write("Disconnected from remote host\n");
85. }
86. return $sent;
87. }
89. /* Private Functions */
90. function smtp_send($helo, $from, $to, $header, $body = "")
91. {
92. if (!$this->smtp_putcmd("HELO", $helo))
93. {
94. return $this->smtp_error("sending HELO command");
95. }
97. #auth
98. if($this->auth)
99. {
100. if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user)))
101. {
102. return $this->smtp_error("sending HELO command");
103. }
104. if (!$this->smtp_putcmd("", base64_encode($this->pass)))
105. {
106. return $this->smtp_error("sending HELO command");
107. }
108. }
109. if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">"))
110. {
111. return $this->smtp_error("sending MAIL FROM command");
112. }
113. if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">"))
114. {
115. return $this->smtp_error("sending RCPT TO command");
116. }
117. if (!$this->smtp_putcmd("DATA"))
118. {
119. return $this->smtp_error("sending DATA command");
120. }
121. if (!$this->smtp_message($header, $body))
122. {
123. return $this->smtp_error("sending message");
124. }
125. if (!$this->smtp_eom())
126. {
127. return $this->smtp_error("sending . [EOM]");
128. }
129. if (!$this->smtp_putcmd("QUIT"))
130. {
131. return $this->smtp_error("sending QUIT command");
132. }
133. return TRUE;
134. }
136. function smtp_sockopen($address)
137. {
138. if ($this->relay_host == "")
139. {
140. return $this->smtp_sockopen_mx($address);
141. }
142. else
143. {
144. return $this->smtp_sockopen_relay();
145. }
146. }
148. function smtp_sockopen_relay()
149. {
150. $this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");
151. $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
152. if (!($this->sock && $this->smtp_ok()))
153. {
154. $this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");
155. $this->log_write("Error: ".$errstr." (".$errno.")\n");
156. return FALSE;
157. }
158. $this->log_write("Connected to relay host ".$this->relay_host."\n");
159. return TRUE;;
160. }
162. function smtp_sockopen_mx($address)
163. {
164. $domain = ereg_replace("^.+@([^@]+)$", "\1", $address);
165. if (!@getmxrr($domain, $MXHOSTS))
166. {
167. $this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");
168. return FALSE;
169. }
170. foreach ($MXHOSTS as $host)
171. {
172. $this->log_write("Trying to ".$host.":".$this->smtp_port."\n");
173. $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
174. if (!($this->sock && $this->smtp_ok()))
175. {
176. $this->log_write("Warning: Cannot connect to mx host ".$host."\n");
177. $this->log_write("Error: ".$errstr." (".$errno.")\n");
178. continue;
179. }
180. $this->log_write("Connected to mx host ".$host."\n");
181. return TRUE;
182. }
183. $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");
184. return FALSE;
185. }
187. function smtp_message($header, $body)
188. {
189. fputs($this->sock, $header."\r\n".$body);
190. $this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));
191. return TRUE;
192. }
194. function smtp_eom()
195. {
196. fputs($this->sock, "\r\n.\r\n");
197. $this->smtp_debug(". [EOM]\n");
198. return $this->smtp_ok();
199. }
201. function smtp_ok()
202. {
203. $response = str_replace("\r\n", "", fgets($this->sock, 512));
204. $this->smtp_debug($response."\n");
205. if (!ereg("^[23]", $response))
206. {
207. fputs($this->sock, "QUIT\r\n");
208. fgets($this->sock, 512);
209. $this->log_write("Error: Remote host returned \"".$response."\"\n");
210. return FALSE;
211. }
212. return TRUE;
213. }
215. function smtp_putcmd($cmd, $arg = "")
216. {
217. if ($arg != "")
218. {
219. if($cmd=="")
220. {
221. $cmd = $arg;
222. }
223. else
224. {
225. $cmd = $cmd." ".$arg;
226. }
227. }
228. fputs($this->sock, $cmd."\r\n");
229. $this->smtp_debug("> ".$cmd."\n");
230. return $this->smtp_ok();
231. }
233. function smtp_error($string)
234. {
235. $this->log_write("Error: Error occurred while ".$string.".\n");
236. return FALSE;
237. }
239. function log_write($message)
240. {
241. $this->smtp_debug($message);
242. if ($this->log_file == "")
243. {
244. return TRUE;
245. }
246. $message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;
247. if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a")))
248. {
249. $this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");
250. return FALSE;;
251. }
252. flock($fp, LOCK_EX);
253. fputs($fp, $message);
254. fclose($fp);
255. return TRUE;
256. }
258. function strip_comment($address)
259. {
260. $comment = "\([^()]*\)";
261. while (ereg($comment, $address))
262. {
263. $address = ereg_replace($comment, "", $address);
264. }
265. return $address;
266. }
268. function get_address($address)
269. {
270. $address = ereg_replace("([ \t\r\n])+", "", $address);
271. $address = ereg_replace("^.*<(.+)>.*$", "\1", $address);
272. return $address;
273. }
275. function smtp_debug($message)
276. {
277. if ($this->debug)
278. {
279. echo $message;
280. }
281. }
283. }