[rt-users] SenderMustExistInExternalDatabase

[Jeff Hoover]

I am using 2-0-15 on RedHat 7.3 with LDAP.  I have the following set in 
config.pm:

$LookupSenderInExternalDatabase = 1;
$SenderMustExistInExternalDatabase = 1;
$WebExternalAuth = 1;

and set up the LookupExternalUserInfo subroutine.

I tested by sending a message and got a bounce saying 'RT couldn't find 
requestor via its external database lookup'.  However my user account was 
automatically created and I can log in fine.  I thought this was strange 
and did some checking. bin/rt-mailgate says:

if ($RT::LookupSenderInExternalDatabase &&
     $RT::SenderMustExistInExternalDatabase )  {

     MailError(To => $RT::OwnerEmail,
               Subject => "RT Bounce: $Subject",
               Explanation => "RT couldn't find requestor via its external 
database lookup",
               MIMEObj => $entity);

}

This means I will get the bounce every time regardless of whether or not I 
was found (if both variables are set to 1).  I fixed this by changing the 
if statement to:

if ($RT::LookupSenderInExternalDatabase &&
     $RT::SenderMustExistInExternalDatabase &&
     !$RT::Interface::Email::FoundInExternalDatabase )  {

and added the following to lib/RT/Interfaces/Email.pm after line 361 (in 
sub GetCurrentUser):

  $RT::Interface::Email::FoundInExternalDatabase = 
$UserFoundInExternalDatabase;

I also added $FoundInExternalDatabase to @EXPORT_OK in Email.pm and to use 
RT::Interface::Email qw() in rt-mailgate.

There may be a better way to do this, but this fix worked for me so I 
thought I would share it.  I probably won't hang out long on the list 
because of the traffic, but will check the archives.

Thanks,
Jeff Hoover