after upgrade to 2.4 I get passwd-file: Password mismatch

[Helmut K. C. Tessarek via dovecot]

I upgraded dovecot from 2.3 to 2.4 today and all of a sudden I get an authentication error: passwd-file: Password mismatch

My config looks like this:

passdb pam {
  driver = pam
}
passdb passwd-file {
  driver = passwd-file
  auth_username_format = %{user | username}
  passwd_file_path = /etc/dovecot/alternate/passwd
  skip = authenticated
}



user:$6$blablablagfsgfsgfsgsbfssfslongbase64stringhere







Any idea what might be going on?

Cheers,
  K. C.

I haven't changed the /etc/dovecot/alternate/passwd in ages and its contents look similar to: Just earlier today (on 2.3) I was able to login just fine with the alternate password for my user. Did I misconfigure dovecot or are $6$ type passwords no longer supported. Here's the debug output: 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: pam: Finished passdb lookup 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: passwd-file: Performing passdb lookup 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: passwd-file: lookup: user=userhere file=/etc/dovecot/alternate/passwd 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: passwd-file: Finished passdb lookup 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: Auth request finished 2025-11-10 05:44:58 +0100auth(userhere,server-ip-here,sasl:plain)<VrJZMTZD7rtcKosF>: Debug: delaying auth failure

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