>   Our webmail suddenly stabilized about 2 weeks ago.   This is also soon
>after we enabled the new Outlook-CR virus vulnerability scanning.   Perhaps
>after no malformed messages arrive, there was nothing to break Webmail?
>{Until a new spammer arrives to think up a new way to send mailformed
>E-mail}.   All just a theory, but could explain the inconsistency from site
>to site.  We're still back on 7.05.

well, we know that a badly formatted msg can become a killer msg and zombie 
out any SMTP process that reads it, until the memory is full of zombie SMTP 
processes.

So it's plausible that iwebmsg has a similar vulnlerability.

And IMAP?

There is a fairly religious debate in the *nix world about whether a 
mailbox should be stored as single file or a a single directory with one 
file per msg.

When POP3 is main mailbox protocol, the single mailbox files stay pretty small.

When iwebmsg or IMAP is the main mailbox access, the single mailbox file 
can become 10's of mbytes or more.  Probably the msg-per-file is 
better.  It would certainly be faster since msg add/delete is add/delete 
file, with less chance of locking conflicts as with one mailbox file.

Len

http://MenAndMice.com/DNS-training
http://BIND8NT.MEIway.com : ISC BIND for NT4 & W2K
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