Mark Goodge: > Wietse Venema wrote: > > Mark Goodge: > >> > >> The cache has two main functions: > >> > >> 1. To reduce traffic between the gateway and destination server, and > >> reduce load on both. > >> > >> 2. To allow the gateway server to correctly handle mail > >> acceptance/rejection when the destination server is unreachable. > > > > If the cache is good enough for 2) then it makes no sense to > > skip the cache for 1). > > It would if even the short lag for cached failures (or, for that matter, > cached successes) to expire is unacceptable. A typical example might be
If the cache is NOT good enough for 1) then it is NOT good enough for 2), either. Therefore do NOT use the cache. Wietse