 smtp; 550 5.1.1 <obec.bohunovice@o2active.cz>: Recipient
    address rejected: undeliverable address: host
    160.218.169.67[160.218.169.67] said: 550 5.1.1
    <obec.bohunovice@o2active.cz>: Recipient address rejected: User unknown in
    virtual mailbox table (in reply to RCPT TO command)
