On Fri, 2010-06-25 at 09:50 -0500, Matt wrote: > > my mail server has been listed at backscatterer.org, and on their site > > they suggested that i should only send bounces to local users but i dont > > know how to implement this in exim. recently i found out that some of > > the ip's i allow relay for are infect and send a lot of mails with fake > > sender addresses, is their a way in exim that i can allow only senders > > with local + "accepted" domains to relay mails from my mail server. eg: > > that i allow a u...@my-domains.tld from <1.2.3.4> to relay through my > > server but u...@strange-domains.tld from <1.2.3.4> not relay or send any > > mails. this will really help me as now what i normally do is block the > > smtp for the specific ip sending those spams which affect any legitimate > > emails. I really need help on this two problems. here is an example from > > the backscattere website. > > > > Backscatterer - Why it is abusive and how to stop your system doing so > > > > Email servers should be configured to provide Non-Delivery Reports > > (bounces) to local users only. > > Unacceptable email from anywhere else should be rejected. > > > When my email server was getting listed it was due to over quotta > accounts generating bounces. In the end I wrote perl script that > creates a list of over quotta email address every 5 minutes and > rejects at SMTP time rather then creating the bounce. > > Matt > Is it not possible to have an ACL check for over-quota and reject at SMTP time? I don't use Quotas myself, so I've not looked into it.
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