The admin_email is used as the from address if (I'm not mistaken).
From addresses can be forged (even completely invalid) and mail
will still get to it's location.

On 05/13/2014 01:22 PM, Vincent Massol wrote:
>> @@ -69,7 +68,8 @@ $xwiki.ssx.use('Meeting.SkinExtension')
>>        #set($to = "$to $email,")
>>      #end
>>    #end
>> -  #if($xwiki.mailsender.sendHtmlMessage("$context.user", $to, $xwiki.null, $xwiki.null, $title, "$message &lt;br&gt; &lt;a href=$link&gt; $msg.get('contrib.meeting.notification.link') &lt;/a&gt;", "", "")==0)
>> +  #set($defaultMail = $xwiki.getXWikiPreference('admin_email', 'mailer@xwiki.localdomain.com'))
> 
> I don't see how this helps... For example when I'm an admin of a wiki my email is vincent at massol dot net. Sending emails at no-replay@servername is certainly never going to reach me....
> 
> ---
> Reply to this email directly or view it on GitHub:
> https://github.com/xwiki-contrib/application-meeting/pull/3/files#r12578078
>