HI, > > What I want to do is setup server: smtp.domain.com and tell users that > they need to use this server. A firewall will prevent all SMTP traffic > from other networks than only the allowed hotspot networks. This will > prevent the server to be an open relay server for the whole internet. > The next step is to prevent users (that are allowed to use this SMTP > server) from sending bulk mails, so I want to limit the number of > mails they can send. > > For example, users (unique sender address) are allowed to send 10 > messages within one hours. If there are more messages then the limit, > it needs to bounce all message. I just want to have the same policy > for all users so 10 messages for one sender address in one hour. >
Yes. Most would do this by tracking on the client IP. Create a policy to match the traffic, attach a quota, attach a limit. Set it to track on IP. Regards Nigel
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