On 16 Sep 2014, at 17:59 , Bill Cole
wrote:
> It is much safer to use 'reject_invalid_helo_hostname' or
> 'reject_non_fqdn_helo_hostname' or for maximal safety to use a
> 'check_helo_access' map to specifically reject HELO names & patterns that
> fingerprint spambots (e.g. 'friend', 'ylmf-pc',
Am 17.09.2014 um 11:37 schrieb AndreaML:
> On Tuesday 16 September 2014 23:33:43 li...@rhsoft.net wrote:
>>
>> that still too much mail admins sadly don't care about 3 things
>>
>> * A record
>> * PTR
>> * HELO name
>>
>> and instead "reject_unknown_hostname" you need for a sane sleep
>> specific
On Wednesday 17 September 2014 00:31:48 LuKreme wrote:
> On 16 Sep 2014, at 15:24 , AndreaML wrote:
> > Sep 16 06:42:00 server1 postfix/smtpd[4257]: NOQUEUE: reject: RCPT from
> > wr001msr.fastwebnet.it[85.18.95.77]: 450 4.7.1 :
> > Helo command rejected: Host not found; from=
> > to= proto=ESMTP
On Tuesday 16 September 2014 23:33:43 li...@rhsoft.net wrote:
>
> that still too much mail admins sadly don't care about 3 things
>
> * A record
> * PTR
> * HELO name
>
> and instead "reject_unknown_hostname" you need for a sane sleep
> specific rules to at least reject insane HELO :-(
>
thank
On 16 Sep 2014, at 17:24, AndreaML wrote:
hello all,
I am used to have in the config reject_unknown_hostname in the
smtpd_helo_restrictions and for literally years my mailserver were
good.
You were lucky.
That setting (in modern Postfix 'reject_unknown_helo_hostname') has
never been safe.
On 16 Sep 2014, at 15:24 , AndreaML wrote:
> Sep 16 06:42:00 server1 postfix/smtpd[4257]: NOQUEUE: reject: RCPT from
> wr001msr.fastwebnet.it[85.18.95.77]: 450 4.7.1 : Helo
> command rejected: Host not found; from= to=
> proto=ESMTP helo=
>
> for a transaction of a prefectly valid test email i
Am 16.09.2014 um 23:24 schrieb AndreaML:
> Is it also your experience? Has reject_unknown_hostname less and less use in
> favour of other anti-spam methods?
>
> because in a server with 5000 mailbox and 80k-100k messages a day, that
> setting free me of 20k-30k spam messages easily, but catch t
hello all,
I am used to have in the config reject_unknown_hostname in the
smtpd_helo_restrictions and for literally years my mailserver were good.
BUT in the last months, say from the start of the year i am rejecting more and
more messages from reliable sources as the mail servers of pieces of
