Am 02.10.2012 11:23, schrieb Tom Kinghorn: > On 02/10/2012 11:21, Robert Schetterer wrote: >> guess this might be better >> >> check_recipient_mx_access type:table >> Search the specified access(5) database for the MX hosts for the >> RCPT TO domain, and execute the corresponding action. Note: a result of >> "OK" is not allowed for safety reasons. Instead, use DUNNO in order to >> exclude specific hosts from blacklists. This feature is available in >> Postfix 2.1 and later. >> >> but i am still not sure if this is working > Thanks to all who have responded. > > I will test and report back on any successes. > > Regards > Tom
if played with my test setup and this seems to work but however i dont recommend it as a good idea yet until gurus gave their toughts master.cf ... slow unix - - n - - smtp main.cf i.e slow_destination_concurrency_limit = 3 slow_destination_rate_delay = 1s slow_destination_recipient_limit = 6 smtpd_recipient_restrictions = permit_mynetworks, ... permit_sasl_authenticated, ... reject_unauth_destination smtpd_data_restrictions = check_recipient_mx_access hash:/etc/postfix/check_recipient_mx_access i.e with gmx /etc/postfix/check_recipient_mx_access mx0.gmx.net FILTER slow:mx0.gmx.net mx1.gmx.net FILTER slow:mx1.gmx.net -- Best Regards MfG Robert Schetterer