Password issue

[Cerebus the Aardvark]

I am using SHA-256 crypt for dovecot. I have added some new users vi
postfoxadmin, which is also configured to use she-256 crypt.

looking at the database:

{SHA256-CRYPT}$5$lKfXOxua8j9FIFJt$r4rLmMFHUK/FcJ0c.sp.U4paTeE6Obp0t.mj.6eJQx9
# works
{SHA256-CRYPT}$5$Gy.zyFNgYHgSsvmh$C/8Fv47Rjij6S73SwkfhCTwuqGgsmiRCjke6blbt1YD
# does not work

(I changed some random character in each line, but didn't change the length)

Jun 12 12:43:09 mail dovecot: auth: Debug:
policy(kremels,73.14.161.160,<0VjtyCSLluJJDqGg>): Policy check action
is continue
Jun 12 12:43:09 mail dovecot: auth-worker(57297): Debug:
sql(kremels,73.14.161.160,<0VjtyCSLluJJDqGg>): query: select password
FROM mailbox where username ='kremels'
Jun 12 12:43:14 mail dovecot: auth: Debug: client passdb out:
FAIL#0111#011user=kremel