Brian Schang wrote:
Hello:
I have read through the Postfix documentation and have Googled for an
an answer, but I have not found a solution for the following problem...
In a nutshell, I have a number of virtual_mailbox_domains and
virtual_mailbox_maps and everything is working perfectly. Now for a
given virtual user, I'd like to change the virtual mailbox being used
if the message is over a given size.
For instance, assume that I have the following entry in
virtual_mailbox_maps:
Mark Martinec was kind enough to translate my C message size filter into perl
for amavisd-new. You can use it to add:
X-ActualMessageSize: ******
X-ActualMessageSizeBytes: nnnnnn
headers to your message (Each "*" = 1MB) then do something with it in header_checks.
I'm not sure how you would use this to redirect it to a different mailbox for
each user, but it's currently in production HOLDing messages that are too large
for a client's exchange server.
Terry
-----------------------------------------------------------
Mark's message follows:
If all you need to do is to add two header fields based on mail size,
the simplest way is to call add_header() from a custom hook, e.g.:
somewhere in amavisd.conf add:
include_config_files('/etc/amavisd-custom.conf');
then in /etc/amavisd-custom.conf :
package Amavis::Custom;
use strict;
# invoked at child process creation time;
# return an object, or just undef when custom checks are not needed
sub new {
my($class,$conn,$msginfo) = @_;
my($self) = bless {}, $class;
my($mail_size) = $msginfo->msg_size; # mail size in bytes
my($mail_size_mb) = $mail_size/(1024*1024);
my($hdr_edits) = $msginfo->header_edits;
$hdr_edits->add_header('X-ActualMessageSizeBytes', $mail_size);
$hdr_edits->add_header('X-ActualMessageSize',
'*' x ($mail_size_mb > 50 ? 50 : $mail_size_mb));
$self; # returning an object activates further callbacks,
# returning undef disables them
}
1; # insure a defined return
