Postfix 2.2 snapshot 20040828 available

Snapshot 20040828 fixes a few nuisance problems and attempts to
make Postfix a little easier to use.

- The SMTP session caching feature placed new stresses on old code,
  and exposed latent failure modes that just did not surface earlier.
  Of course no mail was ever lost or mis-delivered.

- You can now proxymap(8) the virtual mailbox tables. Previously
  the virtual(8) delivery agent would abort because proxymapping
  such tables is insecure. As of now, the virtual(8) delivery simply
  opens the table directly and thus avoids the proxymap(8) service.

- Better smtp(8) client control over the use of SASL mechanisms.
  The smtp_sasl_mechanism_filter parameter speficies a filter for
  the list of SASL mechanisms from a remote server. This prevents
  the  <at> %!* SASL library from trying to use mechanisms that don't
  work because, for example, the local system isn't set up for
  Kerberos authentication.

- Finer control over canonical mapping with canonical_classes,
  sender_canonical_classes and recipient_canonical_classes.  These
  parameters specify one or more of envelope_sender, header_sender,
  envelope_recipient or header_recipient. The default settings are
  backwards compatible.

Available from Postfix mirror sites:

       336639 Aug 27 21:29 postfix-2.2-20040828.HISTORY
	 6236 Aug 27 21:36 postfix-2.2-20040828.RELEASE_NOTES
      2065222 Aug 28 09:52 postfix-2.2-20040828.tar.gz