Just out of interest, when using a memcache map for postscreen: postscreen_cache_map = memcache:/etc/postfix/memcache-postscreen_cache.cf
with /etc/postfix/memcache-postscreen_cache.cf containing: memcache = inet:mail.charite.de:11211 backup = btree:/var/lib/postfix/postscreen_cache being used from my two MX hosts mail and mail2, what happens in case of concurrent writes to the memcache instance? I mean it's probably not criticial, since both instances will most likely see the same behaviour from the same client. But in general, how are concurrent writes handled by memcache? -- 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