Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread egoitz
Don't bounce you're overquota messages... just reject them :) at mail gateway level at smtp dialogue, this way you will be saving resources on scanning and later perhaps on bouncing them from any place :) http://postfixquotareject.ramattack.net :) :) > Mark Goodge schrieb: >> Dan Slay wrote: >>>

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Stan Hoeppner
Stan Hoeppner put forth on 9/15/2009 5:44 AM: > Ansgar Wiechers put forth on 9/15/2009 4:28 AM: > >> Then you can't avoid sending backscatter. Period. RFC 2821 clearly >> states: >> >> | If an SMTP server has accepted the task of relaying the mail and >> | later finds that the destination is incor

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Stan Hoeppner
Ansgar Wiechers put forth on 9/15/2009 4:28 AM: > Then you can't avoid sending backscatter. Period. RFC 2821 clearly > states: > > | If an SMTP server has accepted the task of relaying the mail and > | later finds that the destination is incorrect or that the mail > | cannot be delivered for some

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread ib
Dan Slay schrieb: Thanks, that's what I have read. Which is why this make things more awkward. I cannot see that holding a recipient list is a solution. [...] Hello Dan and others Has anybody experiences with the sendmail milter 'scam-backscatter' by Eland Systems? Maybe it may solve your pr

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Robert Schetterer
Mark Goodge schrieb: > Dan Slay wrote: >> Thanks, that's what I have read. Which is why this make things more >> awkward. >> >> I cannot see that holding a recipient list is a solution. If, for >> instance, you relay for thousands of domains all going to different >> MTA's that hold each individual

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Martijn de Munnik
On Tue, 15 Sep 2009 11:12:52 +0100, Mark Goodge wrote: > Dan Slay wrote: >> Thanks, that's what I have read. Which is why this make things more >> awkward. >> >> I cannot see that holding a recipient list is a solution. If, for >> instance, you relay for thousands of domains all going to differe

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Mark Goodge
Dan Slay wrote: Thanks, that's what I have read. Which is why this make things more awkward. I cannot see that holding a recipient list is a solution. If, for instance, you relay for thousands of domains all going to different MTA's that hold each individual domains recipient list, its not rea

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Dan Slay
Thanks, that's what I have read. Which is why this make things more awkward. I cannot see that holding a recipient list is a solution. If, for instance, you relay for thousands of domains all going to different MTA's that hold each individual domains recipient list, its not really that straight fo

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Ansgar Wiechers
On 2009-09-15 Dan Slay wrote: > I'm looking for some information on preventing the sending of > backscatter from a Postfix gateway mail server. > > The server itself does not and will not hold a recipient list, Then you can't avoid sending backscatter. Period. RFC 2821 clearly states: | If an SM

Re: Backscatter on Gateway Mail Servers

2009-09-15 Thread Martijn de Munnik
On Tue, 15 Sep 2009 09:45:53 +0100, Dan Slay wrote: > I'm looking for some information on preventing the sending of backscatter > from a Postfix gateway mail server. > > The server itself does not and will not hold a recipient list, therefore I > don't know what the best way forward would be? The

Backscatter on Gateway Mail Servers

2009-09-15 Thread Dan Slay
I'm looking for some information on preventing the sending of backscatter from a Postfix gateway mail server. The server itself does not and will not hold a recipient list, therefore I don't know what the best way forward would be? The server accepts for a number of different domains. Any advice