Jeff Campbell wrote: <...> > Are there any similar web hosts or ISPs currently using SpamAssassin in > a production environment? Smaller but still significantly sized web > hosts or ISPs? I personally would really like to see us provide this to > our customers, but it'd be useful to have some case histories or numbers > on other organizations that have similar offerings, just to show that > it's not impossible or impractical. > FastMail.FM ( http://fastmail.fm ) provides SpamAssassin for paid subscribers. The user documentation is here:
http://www.fastmail.fm/docs/faqparts/Preferences.html#PrefSpam This covers a large number of users, although I can't provide specifics for commercial reasons. To use SpamAssassin in a production environment, we do a number of optimisations. We patched Net::DNS to remove the use of $& , which speeds up all SA regexp matches by orders of magnitude. We integrate SA at the MTA stage by using a Postfix content filter. The content filter only runs the message through SA if the message is over a certain size. Because it is a Postfix content filter, only one SA check is required per transaction (which may include more than one recipient). Because the content filter is a pre-forking server that uses the SpamAssassin library directly, there is no need to spawn a new Perl interpreter or pass the message through another socket. We use Postfix to block messages from open relays or with invalid From: domains, and we also have real-time auditing systems that identify large spam runs targeted at our site and block them (by source IP, MAIL FROM, or whatever consistent property can be found) so these messages never get to the content filter at all. Messages are not run through SA unless at least one of the RCPT TO addresses belongs to a user that has turned the feature on (using a checkbox in our web interface). We do not use Razor. We have found SpamAssassin to be great. Our users love it, and we have had no problems with resource use or stability. ---------------------------------------------------------------------------- Bringing you mounds of caffeinated joy >>> http://thinkgeek.com/sf <<< _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
