sbbs_t::netmail() should return the result of qnetmail(), when called.

Nobody checks the netmail() return value apparently, but this has been a bug
since ... forever.

src/sbbs3/fido.cpp

@@ -157,8 +157,7 @@ bool sbbs_t::netmail(const char *into, const char *title, long mode, smb_t* resm
 			bputs(text[EmailFilesNotAllowed]);
 			mode&=~WM_FILE;
 		}
-		qnetmail(to, title, mode, resmb, remsg);
-		return false; 
+		return qnetmail(to, title, mode, resmb, remsg);
 	}
 	if(net_type == NET_INTERNET) {
 		if(!(cfg.inetmail_misc&NMAIL_ALLOW)) {