How to search and fetch based on Keywords(Custom flags) in IMAP ?

Question

I assigned custom flag keywords for a mail. And I need to search based on the keywords assigned

Answer 1

To search based on the keywords use the Search method with the ImapSearchParameter.Keyword parameters.

Please visit Message Keywords sample code on our IMAP features page.

Comments

Yahoo n Outlook doesn't support keywords.

Will iCloud and Rediff support Keywords ?

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How to get Messages based on only  Message ID as parameter

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To find a message with specified Message ID, use the Search method like this:
  imap.Search(ImapSearchParameter.Header("Message-ID", "your-ID-here"))

This call returns a collection of all messages with the specified Message ID.
Please note that Message ID is not unique - i.e. more messages on the IMAP server can have same Message ID

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I have given like this

ImapMessageCollection Msgsearch =  imap.Search(ImapSearchParameter.Header("MessageId", "CAGB00=92manEQqA4PK2bVbCrDEQ9oLMUv+g1g7QvmH=Mausqew@mail.gmail.com"));

But getting Count=0 in MsgSearch Message Collection

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Please note that the header name is "Message-ID" not the "MessageId". Try to change your code to:

ImapMessageCollection Msgsearch =  imap.Search(ImapSearchParameter.Header("Message-ID", "CAGB00=92manEQqA4PK2bVbCrDEQ9oLMUv+g1g7QvmH=Mausqew@mail.gmail.com"));

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Have any Working  Code to Maintain IMAP  IDLE  for Notification . Please Share