Am 19.10.2012 20:47, schrieb Tobias Maffert:
Hello.
I'm switching from b1gmail to my own setup which consists of Postfix+Dovecot+MySQL (and maybe VBoxAdm). There are two problems: - b1gmail is using unsalted MD5 hashes. Is there any good way to make my new setup backward compatible? So I don't have to force all of my 50k users to change their password. - How do I change my setup to salted SHA256 (or an even better algorithm). And how do I make the hashes compatible between Postfix, Dovecot, MySQL (and maybe VBoxAdm)?
My system:
Debian Squeeze Postfix version: 2.7.1 Dovecot version: 1.2.15
besides your question
you REALLY do not want to START with 1.2.15 while dovecot-2.1.10 is the recent version
postfix is somehow OK but recent is postfix-2.9.4
these outdated versions usually results in many questions on mailing-lists because several howtos do not work or bugs fixed since years are still there