Lately we've been getting hit with mail bomb after mailbomb. They come in
in small bundles, so limiting incoming message size wouldn't fix the problem
This morning my normally 5 to 6 meg sys log is now 59megabytes.
We relay for only our internal addresses and those serving our dial up
equipment.
We have the following settings selected in SMTP Security
Check Valid Sender
Auto-Deny Possible Hack Attempts
Disable SMTP VRFY Command
Any other thoughts? I've blocked the offending IP addresses and they still
connect, our next step will be blocking them at the router. Unfortunately
we can't block UUNet and AOL where the majority of this garbage is being
relayed through.
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