Am 05.04.2014 13:02, schrieb Anders Melchiorsen: > Den 05/04/14 12.32, li...@rhsoft.net skrev: >> >> Am 05.04.2014 10:47, schrieb Anders Melchiorsen: >>> We have some trouble delivering mail to a particular destination. After >>> something >>> like five deliveries in a few seconds, our IP packets are dropped for one >>> hour. >> you can't work around every broken server out there > > Indeed, but this is our second largest ISP, so:
sounds horrible (DROP packages in such a position) > * we have a lot of users there > * those users are complaining to us about the missing mails > * getting in touch with a real postmaster is hard (having him change things > will probably be even harder) > > So we hope to find a stopgap technically if you are large enough that you hit again and again that laughly limits you have only the option to spread your outgoing mails over several ip-addresses the better option is: if that is legit mail the RCPT wnats to have try to find enough senders which most likely know the RCPT in peson and ask him to complain at the ISP - since this is the customer of the ISP itself that would be a different position _________________________________________ if your total mailcount is not too big you may consider settings like below which results in have 1 second delay for each message to the same destination, but you need to claclulate if that is doable at all! smtp_destination_recipient_limit = 15 smtp_initial_destination_concurrency = 2 smtp_destination_concurrency_limit = 2 smtp_destination_concurrency_failed_cohort_limit = 10 smtp_destination_rate_delay = 1 smtp_connection_cache_time_limit = 3
