On Wed, May 07, 2008 at 10:27:48AM +1000, James A. Donald wrote:

> Dynamic strings tempt people to forget about enforcing
> length limits and forget about correctly handling the
> case when the length limits are exceeded.

This too is dealt with. Message sizes are bounded, recipient counts
are bounded, duplicate elimination cache sizes are bounded, command
lengths are bounded, logical header lengths are bounded, body content
is processed 2K bytes at a time...

The requirement is stronger than just not running a single process out of
memory, the entire multi-process Postfix is designed to run in (realistic)
bounded memory (no "fork: out of memory").


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