SearchExpression with new OrConditions about imap HOT 5 CLOSED

Someone here ? Where is the creator ?

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@Ashwar the same problem, but I have to upset you: there is not library problem, there is problem of imap server which returns Unknown: Unknown search criterion: OR.

So I had to do something like 'scenarios', because I work with many different imap servers, each of them supports different scenarios. %)

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Unfortunately we are unable to get OR condition working on our test platform with Dovecot. I've tried also on Outlook.com IMAP services, and the result is the same.
The behaviour has been documented in #198 thank you for the feedback.

If you ever get OR condition working, ping me 👍

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I'm facing this problem right now, this library is coded based on IMAP4 library version of "OR + $KEYWORD" . The IMAP4 is not supported with imap_search function from PHP.
So the problem is not your dovecot, is not the exim, is nothing with imap server itself of that whe this library "compile" the string with the query 'FROM [email protected] OR SUBJECT tatatan' it pass this string to imap_search, a php function with an old imap2 library. So There is NO solution until PHP update the IMAP module to make it compatible with IMAP4 standard we are stuck in IMAP2.
This library make a good job the code is correct but the imap library of php is the problem to be more precise imap_search use some sort of "c-client UW" as an API i see some guys trying to update that library but the results are not exposed.

So now WHAT WE CAN DO?.
The only solution i found after hours of search is make 2 or more searchs one with every criteria and concatenate the results in one array
This for SURE! will kill your IMAP server if you have many many clients but anyway is a solution.
you can found more info about this problem in the php doc.
imap_search() only supports IMAP2 search criterias, because the function mail_criteria() (from c-client lib) is used in ext/imap/php_imap.c for parsing the search string.
IMAP2 search criteria is defined in RFC 1176, section "tag SEARCH search_criteria".

until PHP update this we are stuck here.

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@morpheus747 thank you for the details. I've added a note in the README.md #304

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