XLIST IMAP command being sent automatically on AuthenticateAsync about mailkit HOT 3 CLOSED

The XLIST command is sent once the client is authenticated because it needs to know which folders are the Sent/Trash/Drafts/etc.

(bunch of other XLIST commands)

Those aren't commands, those are responses. MailKit only sends 1 XLIST command in total, no matter how many folders you might have.

I have 18 folders so it sends 36 commands one after the other.

I suspect you are mistaking responses for commands just like you did above, but I can confirm it if you can provide the relevant portion of the protocol log for me to examine.

Is that how its supposed to work?

Based on what I've seen so far, yes.

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@jstedfast

But why does it need to know special folders when I haven't explicitly requested any folders yet? If it really is necessary, is there a way to use the XLIST response to get the list of folders directly? So far I can only access the folders after doing a GetFolders call. If MailKit already sent an XLIST command, shouldn't it use it to populate the folders too?

I am afk right now but as soon as I am back, I'll send over the relevant protocol logs for LIST & STATUS commands. They definitely were separate but I could be wrong.

Edit: I was definitely wrong. It was just one command and a bunch of responses so that's not an issue (sorry for the confusion). However, the original issue with XLIST command is still there.

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If MailKit already sent an XLIST command, shouldn't it use it to populate the folders too?

It does. This is why ImapClient.GetFolder(SpecialFolder.Drafts) doesn't take a CancellationToken because it does not require a command to be sent to the IMAP server.

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