Goal: ===== Make mails go to a target server within 60s. Target server is defined as either:
* the MX host of the destination domain * my smtp_fallback_relay which keeps trying delivery It's really fast and can take a lot of load... Which timeouts should I lower? I think reaching a fixed threshold won't be easy (since many of the timeouts below could add up under unfortunate circumstance). Yet, the target systems are in a friendly environment (no spamd-like characteristics). Just normal (but maybe really busy and easily overwhelmed) MTAs! I was primarly thinking of lowering: smtp_connect_timeout = 30s smtp_data_done_timeout = 600s smtp_data_init_timeout = 120s smtp_data_xfer_timeout = 180s smtp_helo_timeout = 300s smtp_mail_timeout = 300s smtp_quit_timeout = 300s smtp_rcpt_timeout = 300s smtp_rset_timeout = 20s smtp_starttls_timeout = 300s smtp_xforward_timeout = 300s and I'm not sure how smtp_connection_reuse_time_limit = 300s could be lowered in such a way that busy destination MXes are not keeping a lot of mail in the active queue... -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
