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limit emails in exchange

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by waelnady1

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i have a lot of spams so i want to limit each email from sending limited number of emails

1-how can i limit each user to send specific numbers of Email (ex 100 email per day)
2-how to limit the exchange server not to send more than specific number of emails every day
thanks

4 replies

by churdoo

I'm not aware of a way to do what you're asking in native exchange; perhaps there's a third party solution, but I really don't think so. Such a solution would have to STOP a user from creating new emails once they reach their limit, otherwise the outbound SMTP queues could continue to back up.

You say you have a problem with SPAM, yet typically that problem is relative to INBOUND SPAM, however you're asking about limiting the amount your users are sending? I don't understand your request, unless you're saying that your users are sending the SPAM or that your server is relaying.

You didn't mention what version and service pack of exchange server you're using, but if using Exchange Server 2003 SP1 or higher, you can use Intelligent Message Filtering (IMF) to try to reduce inbound SPAM (if EX2003, preferably SP2).

by waelnady1

i'm using win2003sp2 & EX2003SP2

i have tried Article ID :324958
i think there is compromised account been used to send spams so i want to identify it to stop sending more spams or limit message numbers each user sending
but can't find any event related to(Event ID: 1708)
- plz more info about IMF
thanks

by churdoo

Here's an article re: IMF. Again, this is for INBOUND SPAM and won't do anything for a user you suspect is sending SPAM.
http://www.msexchange.org/tutorials/Intelligent-Message-Filter-version-2-IMF-v2.html

One place for you to check as I understand your problem is, in Exchange System Manager / your organization / servers / your server / protocols / SMTP / Default SMTP virtual server / Properties / Access tab / Relay... / UNCHECK 'Allow all computers to relay regardless of the list above'
and restart the SMTP service.

If your server is sending SPAM due to a spammer having found a weak user/password on your system, this setting should stop it.

by ishtml

There an option of using third party to filter you emails before they arrive at yoy email server. It's worthy paying for the service and you willnot have the headeache.
Our company use Appriver to filfter our emails. (Apprive.com). Good luck.

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