Encryption set to SHA512

[domingo13]

To make use of sha512 hashing of passwords, you need to provide the following setting:

$CONF['encrypt'] = "php_crypt:SHA512::{SHA512-CRYPT}";

if you have Dovecot as the backend, like this:

default_pass_scheme = SHA512-CRYPT

[qwc]

Fixing/mentioning that in the readme would be marvelous.

[DavidGoodwin]

Hm, there is this - https://github.com/postfixadmin/postfixadmin/blob/master/DOCUMENTS/HASHING.md

• but the version of postfixadmin used by this image is the 3.3 branch - so https://github.com/postfixadmin/postfixadmin/blob/postfixadmin_3.3/DOCUMENTS/HASHING.md is the correct file.

which does have this section - https://github.com/postfixadmin/postfixadmin/blob/postfixadmin_3.3/DOCUMENTS/HASHING.md#php_crypt

If you can suggest better wording, I'd love a PR or even just a paragraph of text I could paste in for you ...