tron 28e9a2d236 Import Postfix 2.7.1. Major changes since Postfix 2.6.6: ...

- Improved before-queue content filter performance. With
  "smtpd_proxy_options = speed_adjust", the Postfix SMTP server
  receives the entire message before it connects to a before-queue
  content filter. Typically, this allows Postfix to handle the same
  mail load with fewer content filter processes.
- Improved address verification performance. The verify database is now
  persistent by default, and it is automatically cleaned periodically. Under
  overload conditions, the Postfix SMTP server no longer waits up to 6 seconds
  for an address probe to complete.
- Support for reputation management based on the local SMTP client IP address.
  This is typically implemented with "FILTER transportname:" actions in access
  maps or header/body checks, and mail delivery transports in master.cf with
  unique smtp_bind_address values.

2010-06-17 18:05:47 +00:00

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