excellent.. thank you
On Wed, Jul 31, 2013 at 7:32 PM, Wietse Venema <wie...@porcupine.org> wrote: > Roman Gelfand: >> Is there a way to blacklist outbound email which was previously hard-bounced? >> >> For instance, if outgoing email comes back with codes 550 or 554, I >> would like that on subsequent times it doesn't leave the server. > > Wietse: >> You want to block: >> - The same sender? >> - The same recipient? >> - The same content? >> - Something else? > > Roman Gelfand: >> The same recepient > > You need a logfile analyzer that mines the maillog file, or a program > that processes Postfix's standardized bounce messages. > > Once you have a bad recipient you can block it with a transport table: > > /etc/postfix/main.cf: > transport_maps = hash:/etc/postfix/transport > > /etc/postfix/transport: > u...@example.com error:5.1.0 Recipient is undeliverable > > That will prevent the Postfix SMTP server from accepting the > recipient, and will prevent Postfix sendmail submissions from > reaching the Postfix SMTP client. > > Wietse
