FETCH BODY vs FETCH BODYSTRUCTURE + FETCH BODY.PEEK
aki.tuomi at open-xchange.com
Thu Nov 15 12:08:57 EET 2018
You can use fetch bodystructure, it should contain all information such
as attachment names etc. and then there is SNIPPET support also in
2.2.36, which lets you fetch a 100 character snippet of the mail.
On 15.11.2018 11.57, Alessio Cecchi wrote:
> we are developing a web page, for a ticket system, to show the email
> messages ordered by the biggest attachments size present in an IMAP
> folder, with a pagination of 100 messages per page. Each raw
> represents a message with "DATE, FROM, SUBJECT, the preview (the first
> 500 chars of the text/html of the messsage) and the list of the
> attachments (name + size) it contains.
> The problem is that the page load is VERY slow because we fetch the
> entire BODY of all 100 messages, in order to get the preview and the
> attachments name and size.
> Now, considering that each messages can contain up to 50 MB of
> attachments, we risk to download 5000MB from IMAP for every page.
> An option might be to perform two FETCH for each message:
> - one fetch with just the BODYSTRUCTURE (where we can get the
> attachments name and size and the text/html parts).
> - one fetch with the body parts (BODY.PEEK) we need to build the
> preview (text + html).
> We are wondering if there is a single FETCH command to get the text
> and html parts (needed to build the preview) with only the name and
> the size of the attachments without downloading the entire message.
> Alessio Cecchi
> Postmaster @ http://www.qboxmail.it
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