On 17-Aug-2009, at 03:25, Martijn de Munnik wrote:
The 450 error triggers the spammer to retry sending the mail.
In point of fact, if it is a spammer sending you the mail, a 450 error
is often enough to dissuade them. This is the principle behind
greylisting.
However, if these are real m
Martijn de Munnik wrote:
> Hi all,
>
> Sometimes our mail server is 'under attack' and we get a lot of these
> entries in our log file:
>
> Aug 17 11:08:19 stevie.youngguns.nl postfix/smtpd[14890]: [ID 197553
> mail.info] NOQUEUE: reject: RCPT from unknown[212.22.199.165]: 450 4.1.8
> : Sender addr
On Mon, 17 Aug 2009 13:39:39 +0200, Ralf Hildebrandt
wrote:
> smtpd_recipient_restrictions =
>reject_unverified_recipient,
>reject_unauth_destination,
is a unverified recipient a auth destination ? :)
--
Benny Pedersen
* Martijn de Munnik :
> > I'd put them all into smtpd_recipient_restrictions #:)
>
> I did some updates in my main.cf. I've attached the updated file. I kept
> the restrictions with the different smtpd_*_restrictions, I find it a
> little easier to understand.
Thus your initial question :)
(pard
On Mon, 2009-08-17 at 12:46 +0200, Ralf Hildebrandt wrote:
> * Martijn de Munnik :
>
> > > Do you have a caching DNS server?
> >
> > Yes, but still things can go wrong and I don't want a failing DNS lookup
> > to be fatal.
>
> Postfix always returns a 4xx in case of such failures
>
> > As far
* Martijn de Munnik :
> > I'd put them all into smtpd_recipient_restrictions #:)
>
> http://www.postfix.org/SMTPD_ACCESS_README.html#danger
Doesn't apply for your restrictions
--
Ralf Hildebrandt
Geschäftsbereich IT | Abteilung Netzwerk
Charité - Universitätsmedizin Berlin
Campus Benjami
On Mon, 17 Aug 2009, Martijn de Munnik wrote:
> On Mon, 2009-08-17 at 12:46 +0200, Ralf Hildebrandt wrote:
> > * Martijn de Munnik :
> >
> > > > Do you have a caching DNS server?
> > >
> > > Yes, but still things can go wrong and I don't want a failing DNS lookup
> > > to be fatal.
> >
> > Post
On Mon, 2009-08-17 at 12:46 +0200, Ralf Hildebrandt wrote:
> * Martijn de Munnik :
>
> > > Do you have a caching DNS server?
> >
> > Yes, but still things can go wrong and I don't want a failing DNS lookup
> > to be fatal.
>
> Postfix always returns a 4xx in case of such failures
>
> > As far
* Martijn de Munnik :
> > Do you have a caching DNS server?
>
> Yes, but still things can go wrong and I don't want a failing DNS lookup
> to be fatal.
Postfix always returns a 4xx in case of such failures
> As far as I know it does. But I see it is also included in
> xbl.spamhaus.org.
Rather
On Mon, 2009-08-17 at 11:28 +0200, Ralf Hildebrandt wrote:
> * Martijn de Munnik :
> > Hi all,
> >
> > Sometimes our mail server is 'under attack' and we get a lot of these
> > entries in our log file:
> >
> > Aug 17 11:08:19 stevie.youngguns.nl postfix/smtpd[14890]: [ID 197553
> > mail.info] NO
Martijn de Munnik schrieb:
> Hi all,
>
> Sometimes our mail server is 'under attack' and we get a lot of these
> entries in our log file:
>
> Aug 17 11:08:19 stevie.youngguns.nl postfix/smtpd[14890]: [ID 197553
> mail.info] NOQUEUE: reject: RCPT from unknown[212.22.199.165]: 450 4.1.8
> : Sender
* Martijn de Munnik :
> Hi all,
>
> Sometimes our mail server is 'under attack' and we get a lot of these
> entries in our log file:
>
> Aug 17 11:08:19 stevie.youngguns.nl postfix/smtpd[14890]: [ID 197553
> mail.info] NOQUEUE: reject: RCPT from unknown[212.22.199.165]: 450 4.1.8
> : Sender addre
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