Because most IMAP clients store mailbox data locally and do their own threading and sorting.
In most cases the threading and sorting IMAP extensions are used for webmail clients that download mail via IMAP. We include a webmail client with MDaemon that does not use IMAP to download mail and it already supports threading.
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Arron Caruth
Vice President of Product Development
o: 817-601-3222 e: Arron.Caruth@mdaemon.com
MDaemon Technologies
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From: md-support@mdaemon.com [mailto:md-support@mdaemon.com] On Behalf Of lists-md-support@mdaemon.com (Pavel Yastrzhembski)
Sent: Wednesday, May 27, 2020 3:47 AM
To: md-support@mdaemon.com
Subject: [md-support] IMAP server THREAD capability
MDaemon IMAP server does not support THREAD (THREAD=REFERENCES) capability. Why?
View/reply at IMAP server THREAD capability
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