What causes folders to be reported as noselect?

[Aki Tuomi]

> On 26 September 2018 at 18:42 Daniel Miller <dmiller at amfes.com> wrote:
> 
> 
> As the subject says.  This may be a bit open-ended - but it would really 
> help troubleshooting some obscure folder issues.
> 
> In my case, I happen to have both some "real" folders and also some 
> "virtual" folders that respond to IMAP LIST commands with the 
> "\NoSelect" flag - and I don't know why.  Via telnet, I can manually 
> issue SELECT, SEARCH, and FETCH for such folders without errors.
> 
> -- 
> 
> Daniel
>

\NoSelect folders are usually namespace boundaries and non-existing folders, such as parents for children in systems where the parents do not need to exist for real.

You should not be able to SELECT a \NoSelect folder.

Aki