CODEWITHSUNDEEP
c#mailkit
Fab
Fab

Reputation: 14813

How to fetch all headers of several messages in MailKit

In MailKit,

You can fetch the IMessageSummary (containing the specified headers and the full message) for several messages with the following

ImapFolder folder;
List<UniqueId> uids;
var messageSummaries = folder.Fetch(uids, 
                                    MessageSummaryItems.Full, 
                                    new HashSet<string>{"X-Mailer"});

If a pass an empty HashSet<string>, I get a System.ArgumentException: The set of header fields cannot be empty.

How can I fetch all headers available ?

Note: I know that I could get the headers on each message, one by one, but it is too slow to match my performance needs.

Upvotes: 1

Views: 1018

Answers (1)

Fab
Fab

Reputation: 14813

Hacking into MailKit

As MailKit is open-source, I just modified the code of ImapFolderFetch to handle the fetch for all headers and made a pull request. The owner of the library improved it by adding a new value in MessageSummaryItems.

Usage:

var messageSummaries = folder.Fetch(uids, MessageSummaryItems.Headers);

Note: Until a new release is done, you ll have to build your own from github master.

Upvotes: 3

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