I have a query i want postfix not to try sending mails to a destination which is dead. Does postfix maintains cache or is there any settings to be done for it. Tried googleing found this two directives. But dont exactly know it really works .
minimal_backoff_time = 86400 maximal_backoff_time = 86400 Ex: I'm sending a mail to xyz.com and my server could not connect to the xyz.com smtp server. My mail gets deffered and then it tries as per my setting but later another user of mine tries to send mail to the same domain and it happens again. I dont want postfix to try instead it can check the cache for the domain and not try delivering it. -- Ashwin R.