Matus UHLAR - fantomas:
> Hello,
> 
> Any idea if I can disable these attempts?
> 
> 
> On 07.05.20 12:26, Matus UHLAR - fantomas wrote:
> >I ust received mail where user specified destination address:
> >@example....@example.com
> >
> >the mail was accepted and forwarded to "empty_address_recipient",
> >
> >which docs' say:
> >
> >"...Postfix does not accept such addresses in SMTP commands..."
> >http://www.postfix.org/postconf.5.html#empty_address_recipient

There was a malformed recipient that looked like

        "@some-local-domain"@some-local-damain

See http://www.postfix.org/postconf.5.html#resolve_dequoted_address for
why Postfix looks inside the quotes and tries to deliver to
""@some-local-domain.

With empty_address_recipient=no, Postfix would reject the address
with "unknown user", because there is no user named "@some-local-domain".

        Wietse

> >however, the address is accepted from remote sites, when I enter destination
> >domain this way. Even newer postfix versions (3.4.8 checked) accept it.
> >
> >Should such destination addresses be accepted?
> >
> >postfix 2.11.3, Debian 8
> >
> >smtpd_recipient_restrictions = reject_non_fqdn_recipient, 
> >reject_unknown_recipient_domain, permit_mynetworks, 
> >permit_sasl_authenticated, reject_unauth_destination,
> 
> -- 
> Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
> Warning: I wish NOT to receive e-mail advertising to this address.
> Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
> I don't have lysdexia. The Dog wouldn't allow that.
> 

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