On 6/14/2012 10:12 AM, Adrian Gibanel wrote: > > Thank you Noel but there's a little problem on your solution I think. I mean. > What I want is: > > Throttle emails: > * Sending to any domain: Wait 15 seconds between sending an email and > another email
Why in the world would you do that? It's customary to only implement artificial delays for those destinations that require it. > * Sending to gmail : Wait 15 seconds between sending an email and another > email > * Sending to yahoo: Wait 15 seconds... > * Sending to local domain: Don't throttle at all. > > There's a "Sending to gmail" and a "Sending to yahoo" just in case their send > delay is changed independently of the others as you might imagine. > > Setting the session limit to 1 and mx address limit to 1 is to ensure that > given a domain only a one email each 15 seconds is sent to it. I don't know > if there's a better way to achieve that. No, those settings tell postfix to try one MX only. If the single attempt fails, defer the mail rather than try another MX. This can *severely* delay mail to destinations that tend to have non-functional MXs, such as hotmail and yahoo. This delay will be further aggravated by your short smtp_helo_timeout (normally a short helo timeout for "freemail" destinations is good, since it lets you skip slow/dead servers quickly and move to the next one. but you create a bigger problem when you disable the next one) > > And using default_destination_rate_delay is what I think I need to setup the > "Going to any domain" rule. > > So... How to throttle to 0 seconds my own domain so that it does not affect > the "Going to any domain" rule? And, of course, avoiding that error about > "warning: do not list domain in BOTH virtual_mailbox_domains and > relay_domains". > > Or maybe an alternative way to implement this? If you insist on a default delay, you can create a "zerodelay" transport for your local domain that resets the delay to zero. -- Noel Jones
