On Wed, 18 Dec 2019 13:10:50 -0500
Viktor Dukhovni wrote:
> [ I'm on the list, there's no need to Cc: me directly]
>
> On Wed, Dec 18, 2019 at 01:36:17AM -0800, li...@lazygranch.com wrote:
>
> > Viktor Dukhovni wrote:
> >
> > > header-checks.pcre:
> > > if /^Reply-To:/
> > > # Ad
On 18 Dec 2019, at 18:55, Konstantin Boyandin wrote:
Hello,
I need to possibly reject mail, in case the below is all true
- domain part of From: header and RCPT TO: addresses is the same
- domain part of MAIL FROM: differs from domain part of From: header
Looks like I need to use filtering vi
On 18 Dec 2019, at 14:22, voroni...@soft-masters.ru wrote:
I have a mail system on Postfix+dovecot+amavisd+spamassassin+clamav.
Now
there is a task, an easy one, actually, but I still cannot find a
solution.
I need to change headers in emails according to several rules. For
example,
IF ( CON
Konstantin Boyandin:
> Hello,
>
> I need to possibly reject mail, in case the below is all true
>
> - domain part of From: header and RCPT TO: addresses is the same
> - domain part of MAIL FROM: differs from domain part of From: header
>
> Looks like I need to use filtering via check_policy_serv
Hello,
I need to possibly reject mail, in case the below is all true
- domain part of From: header and RCPT TO: addresses is the same
- domain part of MAIL FROM: differs from domain part of From: header
Looks like I need to use filtering via check_policy_service; question
is, into which Postfi
On 12/18/2019 1:22 PM, voroni...@soft-masters.ru wrote:
I have a mail system on Postfix+dovecot+amavisd+spamassassin+clamav.
Now there is a task, an easy one, actually, but I still cannot find
a solution. I need to change headers in emails according to several
rules. For example,
|IF ( CONTAI
I have a mail system on Postfix+dovecot+amavisd+spamassassin+clamav. Now
there is a task, an easy one, actually, but I still cannot find a solution.
I need to change headers in emails according to several rules. For example,
IF ( CONTAINS 'ALIAS_1' AND CONTAINS 'SOMEONE FROM ALIAS_1')
OR (IF ='AL
[ I'm on the list, there's no need to Cc: me directly]
On Wed, Dec 18, 2019 at 01:36:17AM -0800, li...@lazygranch.com wrote:
> Viktor Dukhovni wrote:
>
> > header-checks.pcre:
> > if /^Reply-To:/
> > # Adjust to exactly match the observed header
> > # Includes rule id in reject me
Hi Wietse,
So for me it still makes sense to combine postscreen with postgrey, as
postscreen works mainly on ip addresses (their reputation in fact) while
postgrey also takes care on sender's and recipient's e-mail addresses.
By design, postscreen does not know the sender or recipient.
In pa
Wietse Venema:
> Claus R. Wickinghoff:
> > So for me it still makes sense to combine postscreen with postgrey, as
> > postscreen works mainly on ip addresses (their reputation in fact) while
> > postgrey also takes care on sender's and recipient's e-mail addresses.
>
> By design, postscreen does
Perfect!!!
Now I understand and I'll to start DMARC implementation with p=none to see
what happen.
Regards !!!
El mié., 18 dic. 2019 a las 7:22, Gregory Heytings () escribió:
>
> Hi,
>
> I'd second Viktor Dukhovni's opinion. For the vast majority of mail
> servers, a minimalistic DMARC policy
Claus R. Wickinghoff:
> So for me it still makes sense to combine postscreen with postgrey, as
> postscreen works mainly on ip addresses (their reputation in fact) while
> postgrey also takes care on sender's and recipient's e-mail addresses.
By design, postscreen does not know the sender or rec
Hi,
I'd second Viktor Dukhovni's opinion. For the vast majority of mail
servers, a minimalistic DMARC policy suffices, just add the following
record in the domain's DNS root zone:
_dmarc 10800 IN TXT "v=DMARC1; p=none;"
If you want to go a step further, you can just monitor how DMARC is
On Wed, 11 Dec 2019 21:56:48 -0500
Viktor Dukhovni wrote:
> > On Dec 11, 2019, at 9:38 PM, li...@lazygranch.com wrote:
> >
> > I have a spammer who uses all sorts of "from" addresses but the same
> > "reply" address. Any way to block this spammer in Postfix.
>
> main.cf:
> pcre = p
> > > Yes. Do any Postfix administrators with busy systems rely on NFS?
> > > That seems like a really bad idea, honestly.
> So NFS is a poor, outdated choice for mail storage in 2020 for a small/medium
> enterprise?
On any large number of users some kind of hash is used to distribute email
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