Ah!
>> I don't see how I can do this with Postfix, and it's not even simple in
>> a policy due to the cyclic risk. What are others doing in this respect?
>
> /etc/postfix/main.cf
> smtpd_reject_unlisted_sender = yes
I mistook the documentation of this option to also work on external senders!
On 2017-10-20 21:28:29 (+0200), Rick van Rein wrote:
On 2017-10-20 21:17:26 (+0200), Philip Paeps wrote:
On 2017-10-20 19:51:07 (+0200), Rick van Rein wrote:
Wouldn't it be a lot easier simply to reject those with SPF? If
you're seeing mail from one of your domains coming in from a host you
Rick van Rein:
> Hello,
>
> I see a lot of spam entering that claims to have come from a local
> domain, usually guessing a non-existent account. I've been looking for
> a way to "reject_unverified_local_sender", by which I mean that the
> sender address is verified iff it occurs in virtual_alias
Hi Philip,
> Wouldn't it be a lot easier simply to reject those with SPF? If
> you're seeing mail from one of your domains coming in from a host you
> know couldn't have legitimately sent it, you can reject it outright.
That would block not just the spam, but also legitimate bypassing
through fo
On 2017-10-20 19:51:07 (+0200), Rick van Rein wrote:
I see a lot of spam entering that claims to have come from a local
domain, usually guessing a non-existent account. I've been looking for
a way to "reject_unverified_local_sender", by which I mean that the
sender address is verified iff it o
Hello,
I see a lot of spam entering that claims to have come from a local
domain, usually guessing a non-existent account. I've been looking for
a way to "reject_unverified_local_sender", by which I mean that the
sender address is verified iff it occurs in virtual_alias_domains (and
perhaps a few
