I should have mentioned the mail system is on a VPS and I'm the only user. And
yes, trouble makers are on the Internet.
What lead me to this was I did bzgrep "max auth" and noticed both smtp and
submission was found. (max auth as in checking anvil rate limiting). Since I'm
the only person that
On Nov 27, 2016, at 16.15, li...@lazygranch.com wrote:
>
> I hate to bug the list for what is probably a dumb question, but is there any
> situation where an unauthorized user needs to connect to port 587? I'm
> wondering if there is some oddball "edge" case.
well, i suppose it would depend up
Hi.
> Including spamming innocent people with notifications for email
> that they did not send.
You are right, but in my case it is about blocking sending to people
outside a local 'ecosystem'. So spamming is quite unlikely since there
are no relay servers configured either.
Anyway, thank you fo
Stavros Tsolakos:
> > What is the nature of the client? If it is an MTA, then it must
> > return a message to sender; if it is an MUA, then don't count on
> > such clients to put a non-delivery notice in the sender's inbox.
>
> Yes, it is a MUA. Several MUAs actually: a Rainloop webmail client, a
I hate to bug the list for what is probably a dumb question, but is there any
situation where an unauthorized user needs to connect to port 587? I'm
wondering if there is some oddball "edge" case.
My thought is to use my ipfw table of known trouble makers to block 587.
Hi.
> What is the nature of the client? If it is an MTA, then it must
> return a message to sender; if it is an MUA, then don't count on
> such clients to put a non-delivery notice in the sender's inbox.
>
Yes, it is a MUA. Several MUAs actually: a Rainloop webmail client, a
CLAWS mail client et
Stavros Tsolakos:
> milter-reject: END-OF-MESSAGE from localhost[127.0.0.1]: 4.5.1 Rejected
> because I said so;
What is are Milter call and arguments that send the response?
> "Rejected because I said so" is a test reason I have written. Still, the
> client reports a failure but no failure messa
Hi.
>> I have tried REJECTing it, however sending just failed without further
>> explanation for the user, although the reason appeared fine in the log
>> file. To avoid client specific issues, I would need something similar to
>> the undeliverable mail notifications emails sent to the sender's ma
Stavros Tsolakos:
> Hi list.
>
> I am really new to postfix and email-under-the-hood in general.
>
> I have written a milter which in some cases DISCARDs the message, so
> that it may not be sent at all. Is there a way of making postfix notify
> the sender that their email was discarded?
Yes, it
@lbutlr:
> On Nov 26, 2016, at 11:30 AM, E. Recio wrote:
> > On 11/22/2016 10:47 AM, @lbutlr wrote:
> >>=20
> >> reject_unknown_reverse_client_hostname,
> >>=20
> >> but I also use:
> >> reject_non_fqdn_recipient,
> >> reject_unknown_sender_domain,
> >> reject_invalid_hostname,
>
> > Wow, these s
Hi list.
I am really new to postfix and email-under-the-hood in general.
I have written a milter which in some cases DISCARDs the message, so
that it may not be sent at all. Is there a way of making postfix notify
the sender that their email was discarded?
I have tried REJECTing it, however send
On Nov 26, 2016, at 11:30 AM, E. Recio wrote:
> On 11/22/2016 10:47 AM, @lbutlr wrote:
>>
>> reject_unknown_reverse_client_hostname,
>>
>> but I also use:
>> reject_non_fqdn_recipient,
>> reject_unknown_sender_domain,
>> reject_invalid_hostname,
> Wow, these settings cut down on spam by a lot!
On 11/27/2016 01:47 PM, John Fawcett wrote:
> On 11/23/2016 10:54 PM, j...@conductive.de wrote:
>> On 2016-11-23 21:57, John Fawcett wrote:
>>> On 11/22/2016 01:35 AM, Joel Linn wrote:
Hey Guys,
this issue has decayed a bit but I now finally found the time (and the
nerves) to in
On 11/23/2016 10:54 PM, j...@conductive.de wrote:
> On 2016-11-23 21:57, John Fawcett wrote:
>> On 11/22/2016 01:35 AM, Joel Linn wrote:
>>> Hey Guys,
>>>
>>> this issue has decayed a bit but I now finally found the time (and the
>>> nerves) to integrate the fix in my system.
>>> I'm running Ubuntu
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