Hi, During bulk mailing (straight from Apple Mail) with large attachment I run into bandwidth problem on symmetric 20mbit DSL line. For short period of time (several minutes) it becomes almost dead.
I made these changes in /etc/postfix/main.cf smtp_destination_concurrency_limit = 2 smtp_destination_rate_delay = 1s smtp_extra_recipient_limit = 10 however, I'm not sure it will work as expected since most of these options are per-domain limit, yet destination e-mails usually on different domains. I have this rule in Shorewall DNAT loc dmz:192.168.1.2 tcp smtp - ip.xx.yy.zz Q: Is it possible to specify straight in this line smtp throughput limit, e.g. 1mbit/sec, or only concurrent number of connections and burst rate? May this limit throw Postfix into time-out errors? DNAT loc dmz:192.168.1.2 tcp smtp - ip.xx.yy.zz 5/sec:10 Where ip.xx.yy.zz - external IP our provider. Symmetrical DSL is fairly quick yet it can't handle many parallel streams of data gracefully. Thanks in advance. Andrei ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Shorewall-users mailing list Shorewall-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/shorewall-users
