Mail issue with MS SMTP

When sending a mail the SMTP server respose is an error.
I'm using windows 2003 with microsoft smtp (IIS) server. here you can see the log:

#Fields: date time c-ip cs-username s-sitename s-computername s-ip s-port cs-method cs-uri-stem cs-uri-query sc-status sc-win32-status sc-bytes cs-bytes time-taken cs-version cs-host cs(User-Agent) cs(Cookie) cs(Referer) 
2007-03-27 18:19:25 127.0.0.1 wpc3313 SMTPSVC2 WPC3313 127.0.0.1 0 HELO - +wpc3313 250 0 34 12 0 SMTP - - - -
2007-03-27 18:19:25 127.0.0.1 wpc3313 SMTPSVC2 WPC3313 127.0.0.1 0 MAIL - +FROM:<noreply@domain.com> 250 0 43 30 0 SMTP - - - -
2007-03-27 18:19:25 127.0.0.1 wpc3313 SMTPSVC2 WPC3313 127.0.0.1 0 RCPT - +TO:<NITEMAN+<mail@domain.com>> 501 0 27 34 0 SMTP - - - -
2007-03-27 18:19:25 127.0.0.1 wpc3313 SMTPSVC2 WPC3313 127.0.0.1 0 QUIT - wpc3313 240 110 59 4 0 SMTP - - - -

Changing line 717 in the module from $to = $account->name . ' <' . $account->mail . '>'; to $to = $account->mail; seems to work ok.

Sorry i can't attach a patch right now.

Thanks for a great module.