On Mon, Mar 19, 2012 at 1:07 PM, /dev/rob0 <r...@gmx.co.uk> wrote:

> On Mon, Mar 19, 2012 at 10:59:51AM +0200, K bharathan wrote:
> > with postscreen i experience the following problem:
> > it blocks mail from hotmal as following (from mail log)
> >
> > Mar 19 10:17:19 relay1 postfix/postscreen[10619]: NOQUEUE: reject:
> > RCPT from [65.55.116.21]:55820: 450 4.3.2 Service currently
> > unavailable; from=<x...@hotmail.com>, to=<x...@example.com>,
> > proto=ESMTP, helo=<blu0-omc1-s10.blu0.hotmail.com>
> >
> > this happens to mail from Gmail at random
> >
> > i'm running postfix-current-2.9.20111219,4 on freebsd
>
> The 2.9 branch was released and is now up to 2.9.1. You should
> upgrade that.
>
> > postscreen  config is as follows:
> > content_filter = amavisd-new:[127.0.0.1]:10024
> > postscreen_access_list = permit_mynetworks,
> >         cidr:/usr/local/etc/postfix/postscreen_access.cidr
> >
> > postscreen_dnsbl_threshold = 2
> > postscreen_dnsbl_sites = zen.spamhaus.org*2
> >         bl.spamcop.net*1
> > postscreen_dnsbl_action = enforce
>
> With this DNSBL configuration, Spamcop is never signficant; it is
> like having a Zen lookup only. If you want to have the benefit of
> less-safe DNSBLs like Spamcop, you must have more than one listed,
> enabling the lower-scored DNSBLs to reach your threshold score.
>
> > postscreen_greet_action = enforce
>
> > postscreen_pipelining_enable = yes
> > postscreen_non_smtp_command_enable = yes
> > postscreen_bare_newline_enable = yes
>
> You apparently did not understand this:
>
> http://www.postfix.org/POSTSCREEN_README.html#after_220
>
> When you enable these after-220 or "deep protocol" tests, real MTA
> clients are delayed as you have shown.
>
> > is there any way to whitelist sender domain or recipient domain
>
> No, there is no such feature in postscreen.
> --
>  http://rob0.nodns4.us/ -- system administration and consulting
>  Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
>
thanks
understand why postscreen send 450 and it's been like that; but some of the
recipients did not receive the mails from hotmails and their hotmail
senders  get "This is an automatically generated Delivery Status
Notification.Delivery to the following recipients failed." from
postmas...@mail.hotmail.com and sometimes mail never come in or come after
long wait; this happens to gmail and hotmail
should i disable the following:
> postscreen_pipelining_enable = yes
> postscreen_non_smtp_command_enable = yes
> postscreen_bare_newline_enable = yes
i'm unclear

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