@Pascal Volk

Thanks for the algorithm you've provided !

Unfortuantely, I'm not a programmer myself and I don't feel confident to code such an utility (even if I perfectly understand your pseudocode). ;-)

What I'm looking for is not even a hand-made script, but a production solution included in the stock dovecot RPM package itself - i.e a new, better form of the dovecotpw utility.

Best regards, Răzvan