Upgrading from 5.0 to 5.1 does not require any changes in your filter scripts. Notice, however, the following important points:
mailfromd supports Milter
protocol version 6, which is compatible with Sendmail 8.14.0 and
newer. While being backward compatible with earlier Sendmail
releases, it allows you to use the new ‘prog data’ handler
(see data). It also supports macro negotiation, a
feature that enables Mailfromd to ask MTA to export the
macros it needs for each particular handler. This means that if you
are using Sendmail 8.14.0 or higher (or Postfix 2.5 or higher), you no
longer need to worry about exporting macro names in sendmail.cf
file.
The same feature is also implemented on the server side, in
mtasim and pmult. Consequently, using
define-macros in pmult configuration file
is not strictly necessary. However, keep in mind that due to the
specifics of MeTA1, the number of symbols that may be
exported for each stage is limited (see pmult-macros).
__preproc__ and __statedir__
built-in constant is slightly different from what it used to be in
5.0. These constants now refer to the current values of the
preprocessor command line and program state directory,
correspondingly. This should not affect your script, unless you
redefine the default values on run time. If your script needs to
access default values, use __defpreproc__ and
__defstatedir__, correspondingly (see Built-in constants).
The following example explains the difference between these:
$ cat pval.mf prog envfrom do echo "Default value: " __defstatedir__ echo "Current value: " __statedir__ done $ mailfromd --state-directory=/var/mfd --test pval.mf Default value: /usr/local/var/mailfromd Current value: /var/mfd
rate function,
you might consider using the new function rateok or
tbf_rate instead. For a detailed discussion of these functions,
see Sending Rate.
#pragma dbprop (see dbprop).