Ramdisk question

I've configured a 2GB ramdisk and mounted it at  
/var/spool/amavisd/tmp, owned by amavis user. Amavis is using this, I  
see folders appearing as amavisd runs. With a maximum email size of  
25M, I'm assuming this is big enough, but is there a definitive  
measure? And will amavisd use it for unpacking called scans - e.g. clam?

Thanks
Simon

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Simon Wilson
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