Citeren Andy Dorman <[email protected]>:
1. We run memcache on the horde servers. We then added local code
to horde/imp/lib/Compose.php to save and update a 24 hour count of
recipients in memcache for a sender.
Then when a sender hits the 24 hr limit or a limit for the number of
addresses in a single email (spammers love to send to 40 or 50 BCC
addresses), we deactivate the sender (so they can not send any more
until an admin has taken action) and send a note to an admin so
someone can follow up and decide if this is a spammer OR a valid
user whose account was stolen.
I am sure someone like Chuck or Jan could write a patch for you on a
consulting basis. I have been trying to get our code organized and
clean enough that we could submit it as something just about anyone
could use. But right now it is tied pretty closely to our LDAP user
store which is pretty complicated.
Something very similar is already available in Horde through the
Permission system where you can add IMP, specify the number of
recipients per message (max_recipients) and total recipients per time
unit (max_timelimit). You need to have the Outgoing Email Logging
enabled for this to work though.
Best regards, Arjen
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