I had this problem as well. I just added 1 to $max_servers and I have not seen the problem. I don’t know if that’s the “right” solution to the problem, but it worked for me.
From: amavis-users [mailto:amavis-users-bounces+chris=etriptrader....@amavis.org] On Behalf Of Olivier CALVANO Sent: Wednesday, June 1, 2016 2:43 PM To: amavis-users@amavis.org Subject: Re: Good value postfix/amavisd ? Anyone ? Le mardi 31 mai 2016, Olivier CALVANO <o.calv...@gmail.com<mailto:o.calv...@gmail.com>> a écrit : Hi they have a good value between Postfix and Amavisd ?: My config: /etc/amavisd/amavisd.conf $max_servers = 10; /etc/postfix/master.cf<http://master.cf> amavisfeed unix - - n - 10 lmtp -o lmtp_data_done_timeout=1200 -o lmtp_send_xforward_command=yes -o disable_dns_lookups=yes -o max_use=10 127.0.0.1:10025<http://127.0.0.1:10025> inet n - n - - smtpd -o content_filter= -o smtpd_delay_reject=no -o smtpd_client_restrictions=permit_mynetworks,reject -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o smtpd_restriction_classes= -o mynetworks=127.0.0.0/8<http://127.0.0.0/8> -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters,no_address_mappings -o local_header_rewrite_clients= -o smtpd_milters= -o local_recipient_maps= -o relay_recipient_maps= my problems, we have all time the queue which overflows: postqueue -p -- 90962 Kbytes in 368 Requests. and i have a big quantity of : (lost connection with 127.0.0.1[127.0.0.1] while sending end of data -- message may be sent more than once) (connect to 127.0.0.1[127.0.0.1]:10024: Connection refused) (host 127.0.0.1[127.0.0.1] said: 421 4.3.2 Service shutting down, closing channel (in reply to end of DATA command)) thanks for your suggestion olivier