Hello :), > From : myrdhin > Thank you for your help. I'll try your solution.
Sorry, but i always have "Too many connections, slow down." in my /var/log/mail.log. My Postfix is old (mail_version = 2.1.5) butI am constrained to correct this problem before doing the migration on another server (with a recent version of postfix...). Finally i do that : # in /etc/postfix/main.cf : transport_maps = hash:/etc/postfix/transport slow_destination_concurrency_limit = 2 # in /etc/transport/transport : zeDomain.tld slow: # in /etc/postfix/master.cf : slow unix - - n - 3 smtp -o smtp_connection_cache_on_demand=no -o smtp_destination_concurrency_limit=2 It seems to work : no "Too many connections, slow down." messages in my log file since 2 days but i'm afraid about a mail delivery slowdown... I understand the "smtp_connection_cache_on_demand=no" option but i don't know if the "*_destination_concurrency_limit" option is per process of smtp program. With my master.cf, can i make 6 concurrency connections max on zeDomain.tld ? Or is it only 2 max ? Thanks for your help, -- Myrdhin,
