Hi, is there a way to throttle outgoing SMTP by destination IP?
My problem is that I send mails to - domain1.com - domain2.com - domain3.com which handle mails through - mx.domain1.com - mx.domain2.com - mx.domain3.com but when I start contacting them they easily complain with "too many concurrent connections" because all the mx hosts have been resolved to the same IP (well, IP pool, actually). These domains (not under my control) are hosted on a provider that has shared SMTP servers for all their customers and I do not even have an easy way to enumerate the domains. Can I let postfix realize that the connections are not independent and that I want a parallelism limit for them? Of course I want to keep high parallelism for all the other normal domains. Thanks. -- Roberto Ragusa mail at robertoragusa.it
