Empty mail body

[tutench]

When I create a new user the DokuWiki sents out a mail with the password info but the mail body is completely empty... The same happens when I get a notification about a changed article.

Release 2016-06-26a "Elenor of Tsort"
SMTP Server is an Exchange Server 2013

With the SwiftMailer Plugin everything works fine

If more information is needed, let me know.

[Japanuspus]

I am seeing the same issue: Using the SMTP plugin I will get an email, but the body is empty, both when using the SMTP test page in the admin panel, and when using any other email feature (password reset, etc.).

I am using an in-house exchange server with no authorization.
The same server is also mentioned in this forum thread where the problem also has been reported and analyzed: https://forum.dokuwiki.org/post/56370).
In the forum thread, the problem was resolved by changing email server, but this option is not open to me.

I can also reproduce the debug trail from the forum thread. This indicates that the advise_before-hook called on line 689 of Mailer.class.php does not return true:
Modifying this file as follows:

// do our thing if BEFORE hook approves
$evt = new Doku_Event('MAIL_MESSAGE_SEND', $data);
echo "<hr>J1 - Before Hook ".$this->text;
if($evt->advise_before(true)) {
    echo "<hr>J2 - Inside hook".$this->text;
    // clean up before using the headers
    $this->cleanHeaders();
    . . .
}
echo "<hr>J3 - After Hook ".$this->text;

I get the following output when trying to send email (from admin test panel):

<hr>J1 - Before Hook Hi jawes

This is a test from http://csi00774/
-- 
This mail was generated by DokuWiki at
http://csi00774/
<hr>J3 - After Hook Hi jawes

This is a test from http://csi00774/
-- 
This mail was generated by DokuWiki at
http://csi00774/

Note that J2 is missing.
Please let me know if there is anything I can do to debug.

SMTP plugin, Installed version: 2017-02-08
DokuWiki: Release 2017-02-19b "Frusterick Manners"

[jkbha]

This seems to be a bug in the way Exchange server is interpreting the mail. Apparently, (some) Exchange servers is not happy with a single end of line character between header and body, but requires TWO (see e.g. https://www.hmailserver.com/forum/viewtopic.php?t=7456 ).

While this is most likely a problem on the Exchange server's side, it should be easy to fix in the next update of the plugin by including an extra blank line between header and body.

[pierpower]

Hello, I've looked into the issue and found that, after the "Content-Transfer-Encoding: base64" string, there is no carriage return (\r), but only 2 line feed chars (\n).

So, I've added the missing carriage return with the following patch in the "toString()" function inside classes\Message.php:

    public function toString() {
    // we need to remove the BCC header here
    $lines = explode("\n", $this->body);
    $count = count($lines);
    for($i=0; $i<$count; $i++) {
        if(trim($lines[$i]) === '') break; // end of headers, we're done
        if(substr($lines[$i],0, 4) == 'Bcc:') {
            unset($lines[$i]); // we found the Bcc: header and remove it
            while(substr($lines[++$i],0, 1) === ' ') {
                unset($lines[$i]); // indented lines are header continuiation
            }
            break; // header removed, we're done
        }
    }
   ////-------------------------------PATCH START--------------------------------////
    //need to add a carriage return after "base64"
	for($i=0; $i<$count; $i++) {
		$pos = strpos($lines[$i],'base64');
        if($pos!=FALSE) {
            $lines[$i] .= "\r"; 
            }
    }
    ////-------------------------------PATCH END--------------------------------////

    $body = join("\n", $lines);

    return $body . $this->CRLF . $this->CRLF . "." . $this->CRLF;
}

I'm not sure if this is the best way to do that, but it works on my installation.

SMTP server : Exchange server.
SMTP plugin, Installed version: 2017-02-08
DokuWiki: Release 2017-02-19b "Frusterick Manners"

Hope that helps.

[Netand1]

Ok UNIX problem ..you need to put : \r in line 88 ( $body = join("\r\n", $lines);) of /site/lib/plugins/smtp/classes/message.php

[lpagie]

I followed suggestions in https://forum.dokuwiki.org/thread/14686 which solved the issue for me. Also adds a blank line after the header but in slightly different way.
from thread:

A hacky workaround is to include a line like :
$body = str_replace("base64", "base64\r\n\r\n", $body);

in the smpt/action.php right after the $body is generated
$body = $mailer->dump();

I hope hope this can help in fixing the plugin (I couldn't easily figure out how to fix code on github)

grts

[TVetrovsky]

The suggested fixes did not worked for me.
Configuration:
IIS, PHP 7.2.5, DokuWiki 2018-04-22a "Greebo", SMTP Plugin 2017-08-03, Exchange mail server

Previous fix mentioned by @Netand1 worked for plain text emails but not for HTML emails. There are likely more issues with new line encoding. My fix was:
/site/lib/plugins/smtp/classes/message.php - toString function:

public function toString() {
        // we need to remove the BCC header here
        $body = str_replace("\r\n", "\n", $this->body); // added line
        $lines = explode("\n", $body); // changed line
        $count = count($lines);
        for($i=0; $i<$count; $i++) {
            if(trim($lines[$i]) === '') break; // end of headers, we're done
            if(substr($lines[$i],0, 4) == 'Bcc:') {
                unset($lines[$i]); // we found the Bcc: header and remove it
                while(substr($lines[++$i],0, 1) === ' ') {
                    unset($lines[$i]); // indented lines are header continuiation
                }
                break; // header removed, we're done
            }
        }
        $body = join("\r\n", $lines); // fix suggested by @Netand1

        return $body . $this->CRLF . $this->CRLF . "." . $this->CRLF;
    }

This fix works both for plaintext and html emails.

[rawIce]

Ok UNIX problem ..you need to put : \r in line 88 ( $body = join("\r\n", $lines);) of /site/lib/plugins/smtp/classes/message.php

that thing also worked for me, simply add "\r" in the line specified.

[Schroeffu]

Had the same issue, your workaround #17 (comment) works for me too.

In my case the file is uppercase (Message.php), so (path_to_dokuwiki_htdocs)/lib/plugins/smtp/classes/Message.php

[NiyaShy]

Can confirm that adding /r on line 88 of Message.php fixes the empty mail body when using the plugin with Exchange (in our case, Exchange 2019). Works for both plain text and HTML mails.