Is seive support international characters?

Hi,

I would like to now if this implementation of the RFC 3028 is supporting
french characters?
For example, if I would like to filter every subject that contains the
following string "A french character é", is this filter should work with
sieve?

Thanks

Richard Smith
Microcell IT Télécom
mailto:Richard(_dot_)Smith(_at_)microcell(_dot_)ca
Fido: 514.999.6279

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