[Mailman-Users] problem with Greek characters on From field

[Alex Yu]

Hello,

I have a subscriber from Greek.  Every e-mail he sent to the list needs to
be have admin to approve even though he is a subscriber.  The reason for
being held shows that he is not a subscriber.

His e-mail sends as (what shows in From field)

  some_greek_character (English Name) [e-mail_address]

so something looks like (as an example)

  OAciU ee (John Smith) [jsmith at test.gr]

How can fix it?

Alex