Fix smtp send problem. I was over zealous in fixing a memory leak and we were appending an extra

comma to the list of recipients.

mailnews/compose/src/nsMsgSend.cpp

@@ -1676,13 +1676,13 @@ nsMsgComposeAndSend::DeliverFileAsMail ()
 
 	PL_strcpy (buf, "");
 	buf2 = buf + PL_strlen (buf);
-	if (mCompFields->GetTo())
+	if (mCompFields->GetTo() && *mCompFields->GetTo())
 		PL_strcat (buf2, mCompFields->GetTo());
-	if (mCompFields->GetCc()) {
+	if (mCompFields->GetCc() && *mCompFields->GetCc()) {
 		if (*buf2) PL_strcat (buf2, ",");
 			PL_strcat (buf2, mCompFields->GetCc());
 	}
-	if (mCompFields->GetBcc()) {
+	if (mCompFields->GetBcc() && *mCompFields->GetBcc()) {
 		if (*buf2) PL_strcat (buf2, ",");
 			PL_strcat (buf2, mCompFields->GetBcc());
 	}

mailnews/compose/src/nsSmtpUrl.cpp

@@ -100,6 +100,7 @@ nsSmtpUrl::~nsSmtpUrl()
     PR_FREEIF(m_file);
     PR_FREEIF(m_ref);
     PR_FREEIF(m_search);
+	PR_FREEIF(m_toPart);
 }
   
 NS_IMPL_THREADSAFE_ADDREF(nsSmtpUrl);
@@ -281,7 +282,6 @@ nsresult nsSmtpUrl::CleanupSmtpState()
 	PR_FREEIF(m_organizationPart);
 	PR_FREEIF(m_replyToPart);
 	PR_FREEIF(m_priorityPart);
-	PR_FREEIF(m_toPart);
 
 	return NS_OK;
 }