On 26.10.18 09:27, Poliman - Serwis wrote:
I have one more question which is more less related with main thread. I
would like to know can I block port 25 on firewall?
2018-10-26 10:01 GMT+02:00 Matus UHLAR - fantomas :
not if you want to send and receive mail.
[...]
However, if you are not
Hi,
Advertising a primary mx and blocking port 25 for it under the assumption
that spammers won't try the secondary mx is wrong.
In fact spammers target secondary mx more than primary mx since it is a
fact that everyone spends more time on securing and tuning the primary
server.
We maintain many se
On 2018-10-26 14:36, Poliman - Serwis wrote:
Thank you for answer. I have static IP - I bought VPS from OVH. I have
there
configured few domains with mailboxes. On the server are services like
www,
ftp, mail. So, if I understood well, I should block port 25.
Maybe you can go back one step an
2018-10-26 10:01 GMT+02:00 Matus UHLAR - fantomas :
> On 26.10.18 09:27, Poliman - Serwis wrote:
>
>> So generally speaking - I should check postscreen, use a decent RBL and
>> keep smtpd more available for legitimate email. How set decent RBL in
>> Postfix and which are decent?
>>
>
> I believe g
On 26.10.18 09:27, Poliman - Serwis wrote:
So generally speaking - I should check postscreen, use a decent RBL and
keep smtpd more available for legitimate email. How set decent RBL in
Postfix and which are decent?
I believe googling for RBLs, especially mailing lists' archives may help to
fin
2018-10-25 15:28 GMT+02:00 Matus UHLAR - fantomas :
> On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote:
>>>
Hi. I heard that having a non-functional server as the primary MX is a
well-known trick to reduce the amount of incoming spam, as most software
used by spammer
On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote:
Hi. I heard that having a non-functional server as the primary MX is a
well-known trick to reduce the amount of incoming spam, as most software
used by spammers will only ever try the highest-priority MX. How to do this?
On 25/1
On 25/10/18 11:12, Viktor Dukhovni wrote:
>> On Oct 25, 2018, at 5:55 AM, Allen Coates wrote:
>>
>> There are some anti-spam projects which offer MXes for your use.
>> You set one up with the LOWEST prioity (your "MX of last resort"); If a
>> message reaches it, the MX will collect stats
>> an
> On Oct 25, 2018, at 5:55 AM, Allen Coates wrote:
>
> There are some anti-spam projects which offer MXes for your use.
> You set one up with the LOWEST prioity (your "MX of last resort"); If a
> message reaches it, the MX will collect stats
> and then return a TEMPFAIL.
I can't recommend this
On 25/10/18 07:33, Viktor Dukhovni wrote:
> On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote:
>
>> Hi. I heard that having a non-functional server as the primary MX is a
>> well-known trick to reduce the amount of incoming spam, as most software
>> used by spammers will only eve
On 25.10.18 08:11, Poliman - Serwis wrote:
Hi. I heard that having a non-functional server as the primary MX is a
well-known trick to reduce the amount of incoming spam, as most software
used by spammers will only ever try the highest-priority MX. How to do this?
it will also delay the mail del
2018-10-25 8:33 GMT+02:00 Viktor Dukhovni :
> On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote:
>
> > Hi. I heard that having a non-functional server as the primary MX is a
> > well-known trick to reduce the amount of incoming spam, as most software
> > used by spammers will only e
On Thu, Oct 25, 2018 at 08:11:35AM +0200, Poliman - Serwis wrote:
> Hi. I heard that having a non-functional server as the primary MX is a
> well-known trick to reduce the amount of incoming spam, as most software
> used by spammers will only ever try the highest-priority MX. How to do this?
No.
Hi. I heard that having a non-functional server as the primary MX is a
well-known trick to reduce the amount of incoming spam, as most software
used by spammers will only ever try the highest-priority MX. How to do this?
--
*Pozdrawiam / Best Regards*
*Piotr Bracha*
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