Yes, I am using Mail::Sendmail and have been for quite a few years.

I have tried everything, including these things:

    $__to =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__cc =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__bcc =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__from =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__subject =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__html_message =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__text_message =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__importance =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__xpriority =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $__x_ms_priority =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
    $_mail_Message =~ s/(\r\n|\n\r|\r|\n)/\r\n/sg;
# And this:
$_mail_Message =~ s/\cJ\cM$/\r\n/eg;
# Done this for each of the variables...
[download]

Still it does not work. I am thinking at this point, that it is the module, Mail::Sendmail, maybe it is doing something that is causing the errors. I have tried everything, even sending fake information with only one letter in each field and still we get that message.

Maybe it is time for me to find another module to send out the emails one at a time or a bunch at once.