How to enforce strong passwords for mail accounts?

[donnerstag]

I would like to force strong passwords upon the mail users (mail accounts being created with froxlor,
in this case v.0.9.39.5 , on Debian Stretch).

What's the best way to go about it? ... cracklib ... ?

Recommendations or experiences, anybody? I looked for "password strength" and "cracklib" here, but
to no avail.

Thanks all!
do.

[donnerstag]

Thanks d00p, sure good enough for me!

do.

[d00p]

You can specify min length, requirement of lower/uppercase, numbers and special characters in the settings