imap_mail()

(PHP 4, PHP 5, PHP 7)

Send an email message

说明

imap_mail(string $to,string $subject,string $message[,string $additional_headers= NULL[,string $cc= NULL[,string $bcc= NULL[,string $rpath= NULL]]]]): bool

This function allows sending of emails with correct handling of Cc and Bcc receivers.

The parameters$to,$ccand$bccare all strings and are all parsed as » RFC822 address lists.

参数

$to: The receiver
$subject: The mail subject
$message: The mail body, see imap_mail_compose()
$additional_headers: As string with additional headers to be set on the mail
$cc
$bcc: The receivers specified in$bccwill get the mail, but are excluded from the headers.
$rpath: Use this parameter to specify return path upon mail delivery failure. This is useful when using PHP as a mail client for multiple users.

返回值

成功时返回TRUE，或者在失败时返回FALSE。

参见

mail()发送邮件
imap_mail_compose()Create a MIME message based on given envelope and body sections

In response to Mathias Rav's comment.
While imap_mail might have this $rpath bug, it is hardly comparable to mail, because mail only uses the default send mail server account, and not a real mailbox, which you can programmatically interrogate and clean up.
Using the imap extension allows proper mail management and operation, like users not getting the cryptic server account name followed by 'on behalf of' the 'From' address that mail sourced emails show on some recipient clients.

As per http://bugs.php.net/bug.php?id=30688 the $rpath argument is ignored, and since the (as of now) 4 year old bug is tagged WONTFIX in the bug tracker, this function is effectively deprecated in favour of mail().

Extending the above note.
When the socket connection is stablished, it works exactly as if you had openned a telnet connection to the news server. If you don't know what kind of headers you have to send to the news server, then I'll suggest that you better give it a try and play with a telnet connection like this:
telenet news.servername.com 119
eaxmple:
telnet news.euroconnect.dk 119
Trying 195.184.44.30...
Connected to news.euroconnect.net (195.184.44.30).
Escape character is '^]'.
200 news.euroconnect.net (Typhoon v1.2.1)
then you'll receive confirmation from the server that you are connected. Now type "help" and enter, and you'll see what commands are supported.
eaxmle:
help
100 Legal Commands
 article [<messageid>|number]
 authinfo type value
 body [<messageid>|number]
 date
 group newsgroup
 head [<messageid>|number]
 help
 last
 list [active wildmat|active.times|counts wildmat]
 list [overview.fmt|newsgroups wildmat]
 listgroup newsgroup
 mode reader
 newgroups yyyymmdd hhmmss [GMT]
 newnews newsgroups yyyymmdd hhmmss [GMT]
 next
 post
 stat [<messageid>|number]
 xhdr field [range]
 xover [range]
 xpat field range pattern
 quit
If you want to post a message, you can start by entring the "post" command.
example:
post
340 Send Article to be Posted
From here you can start to enter the header information.
The most important headers are:
From:
Subject:
Newsgroup:
after the ":" a "white space" must follow.
If you are posting the multipart message then remember 
MIME-Version: 1.0
This one is also one of the important headers when you are posting a multipart message. The boundary must follow the content type in the same line.
Content-Type: multipart/mixed; boundary="------------4A11A9ABCFCA70DD4E0C3605"
Take a look at the article below to find out more about headers and packing of the message.
http://www.phpbuilder.com/columns/kartic20000807.php3

make sure you've correctly setup the SMTP parameters in php.ini
and aslo make sure that the SMTP server accepts relay
for some mail servers, you have to open up an imap stream, log in, and then you can send mail through imap_mail