postfix and amavis reg.

[Mark Martinec]

Anant,

> Right now, I have only one postfix instance connecting with Amavis for  
> virus scanning (ClamAV).  Situation now demands me to run one more  
> instance of Postfix on the same server.
> 
> Should I start one more instances of Amavis alone?

No need to.

> Should I start one more instances of Amavis and Clamd?

No, keep just one clamd.

> Should I start one more instances of Amavis, Clamd and SpamAssassin?

What do you mean by instances of SpamAssassin?
There is no spamd, so SpamAssassin is running within each
amavisd child process.

> Or, I can use the same instance of Amavis/Clamd/SpamAssasin.

You probably want amavisd to feed passed mail back to the same
MTA where it came from, so it would make sense to use two
amavisd port numbers, one for each MTA. To give you some extra
flexibility in allowing different settings to apply to each
submission port use policy banks. Something like this:

$inet_socket_port = [10024, 10026];

$interface_policy{'10024'} = 'MTA1';
$interface_policy{'10026'} = 'MTA2';

$policy_bank{'MTA1'} = {
  # whatever config overrides are needed for MTA1
  forward_method => 'smtp:[127.0.0.1]:10025',
  notify_method  => 'smtp:[127.0.0.1]:10025',
};

$policy_bank{'MTA2'} = {
  # whatever config overrides are needed for MTA1
  forward_method => 'smtp:[127.0.0.1]:10027',
  notify_method  => 'smtp:[127.0.0.1]:10027',
};


Mark