Sam Varshavchik writes: > Given what you posted, the only possibilities are slow DNS lookups. > Each incoming IP address is resolved, forwards and backwards, via DNS. > Additional, the domain of the sender's address is also looked up in DNS. > > If you have poor network connectivity, your DNS lookups could take > several seconds, each, to complete.
I've tried to dig some random domains and it turns out that my local Bind fails most of the time... however I've changed DNS address in /etc/resolv.conf and I've made it point to 8.8.8.8, just for a test. Dig now replies instantly to every query. Restarted courier-mta and benchmarked again, but nothing changed, still nearly 13 seconds. Does Courier always use the NS specified in /etc/resolv.conf? ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
