qmail on *NIX farm

[Subba Rao]

If I have a farm of *NIX systems,

1. Do I replace sendmail on each system with a Qmail?
2. If yes, do I have to have DNS on all the system (which does not make sense)?

What is the recommended design for such setups?

Thank you in advance.

Subba Rao
[EMAIL PROTECTED]
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Disclaimer - I question and speak for myself.