On 22.10.2014 04:03, li...@sbt.net.au wrote: > as for 'cleanup' : if this user's home PC is 'infected/hacked', if I just > issue a new password, spam will start again ?
Do you limit the amount of mails a user can send per time slot? (like
100 mails in a 6 hour period). If not, please do, you can use postfwd to
achieve this (simple policy daemon).
Example postfwd config below:
> &&SASL_WHITELIST {
> sasl_username=devnull;
> };
>
> # skip lower rate limiting for certain users
> id=SaslWhitelist;
> protocol_state==END-OF-MESSAGE;
> &&SASL_WHITELIST;
> action=rcpt(sasl_username/300/21600/REJECT You can only send to 300
> recipients per 6h per user)
>
> id=SaslWhitelist2;
> protocol_state==END-OF-MESSAGE;
> &&SASL_WHITELIST;
> action=dunno;
>
> # sasl_username != doesn't work for whatever reason
> id=RcptRate;
> protocol_state==END-OF-MESSAGE;
> sasl_username!~/^$/;
> action=rcpt(sasl_username/100/21600/REJECT You can only send to 100
> recipients per 6h per user)
>
> # this causes postfwd to log something for every mail
> id=logging;
> protocol_state==END-OF-MESSAGE;
> action=dunno;
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