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<div class="moz-cite-prefix">On 1/16/2013 2:16 PM, Kent James wrote:<br>
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<blockquote cite="mid:50F726D4.4070204@caspia.com" type="cite">
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I was looking today at trying to fix the relatively simple bug
793865 "<span id="summary_alias_container"><span
id="short_desc_nonedit_display">nsIMsgParseMailMsgState.envelopePos
must be 64bits to support large mbox folders"</span></span>,
figuring that was one needed step on a relatively small path to
support >4GB mbox files in local folders. But as I looked into
it, we have never resolved the issue of a 32 bit nsMsgKey, which
also equals the message offset in local folders. It is a far from
trivial issue to make progress on that.<br>
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There's a msg hdr property called something like "message-offset"
that's used instead of the msgKey as the offset into the local
folder, by the berkeley mailbox store. The msgKey is used for
backwards compatibility if there is no message-offset. Are you
saying the message-offset is never used, or sometimes not used?<br>
<br>
- David<br>
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