Hello,

all users which are allowed to send via our MTA must authenticate first.

Could I block any non-authenticated senders (forging envelope from like
"[EMAIL PROTECTED]") with the following construction?

...
acl_smtp_rcpt = acl_check_rcpt
...
begin acl
acl_check_rcpt:
...
accept  authenticated = *

deny    !authenticated = *
        senders = [EMAIL PROTECTED]:[EMAIL PROTECTED]
...

Should I be aware of any side effects?

Greetings,
Peter

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