> On 10/25/2024 9:47 AM MDT ecdlguy--- via dovecot <dovecot@dovecot.org> wrote: > > Hi, > > I'm trying to block specific MUAs, like e.g. Outlook-App for iOS and Android > or Xiaomi Mail / MiMail using a lua script. > While implementing this, I noticed that "client_id" is always nil in the lua > script or I am doing something wrong. > This is part of the postfix config:
A note that this is explicitly not a supported IMAP ID use-case. Per https://www.rfc-editor.org/rfc/rfc2971.html#section-3: Servers MUST NOT deny access to or refuse service for a client based on information from the ID command. Clients MUST NOT refuse to operate or limit their operation with a server based on the ID response. Client blocking is much better handled via other mechanisms, that may incorporate ID information as a part of the decision making process but does not make a determinative decision based on that string. michael _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org
