Lik Evan has stated, it just queues locally. Same for Sendmail installs. If we a retalking VERY high traffic, with 1000s of users, then you better have more then one server. Or a big HD for the queue ;)
--Chris >-----Original Message----- >From: E. Falk [mailto:[EMAIL PROTECTED] >Sent: Friday, May 27, 2005 12:16 PM >To: spamassassin-users@incubator.apache.org >Subject: Re: SA Gateway -> MS Exchange -- what if MSE down? > > >Hi Tony, > >I have this same setup, and due to the nature of Exchange it >seems to go >down a lot more often than the postfix box. What happens is >that Postfix >queues the e-mail locally and delivers it when the Exchange box comes >back up. > >Works perfectly, no extra setup required. The mail just sits in >Postfix's queue (note, it's useful to use Postfix's before-queue >filtering in these cases so that all the Spamassassin work is done >before it gets into the queue to avoid reprocessing the same messages >later on if you requeue them). > >Evan > >Tony pace wrote: >> we are looking to implement SA in our environment this best >describes >> what we want to do. >> >> [SPAM/HAM] --> [ SA GATEWAY] -----------------------------> [MS >> EXCHANGE] >> - system wide filtering - all user >> mailboxes >> - postfix transport - MX SEC RECORD >> - MX PRI record >> >> the question that was posed --- if the MS Exchange is not accessible >> (network >> issue, down for maintenance) -- what happens to the email? >> >> >> My best understanding is the email will be rejected as >"mail-server not >> available", as SA is a filter not an MTA and that Postfix is a >> check/forwarding >> agent (not "store" & forward). >> >> >> Would I be correct in assuming, in the event that if MS Exchange was >> down, in >> order to "store" mail -- I would need to have a backup MTA >with all the >> users >> mailboxes replicated? >> >> Thanks, >> Tony >> >
