On the other hand now that I think again even supposing there is a permanent error like MySql completely down, retrying continuosly won't do any harm anyway because the machine will not be able to do anything else anyway, when someone will fix MySql it would restart again without human intervention.
So I think I could even just let it retry and use maybe a SMTPHanlder for the logging errors, to make the notification of problems very quick.. -- http://mail.python.org/mailman/listinfo/python-list