RE: Change Temporary failure in name resolution response code

ocks the offender by inserting an iptables DROP entry. > > I block a lot of spammers this way. I wouldn't think of running a > mail server without it. > > Bill > > > On 2/4/2016 4:10 PM, Inteq Solution - Dep. Tehnic wrote: > > Thank you Wietse, > > > > 450 i

RE: Change Temporary failure in name resolution response code

in name resolution response code Inteq Solution - Dep. Tehnic: > "The unknown_client_reject_code parameter specifies the response code > for rejected requests (default: 450). The reply is always 450 in case > the > address->name or name->address lookup failed due

Change Temporary failure in name resolution response code

Hello, I am having some problems with a host hammering my logs all day long because the connection is rejected with 450, even after I have spoken with the person responsible for the domain, explaining why this is happening and what he should do to fix it. hostname ip92.llpdynamics.com does

RE: Reject domain but allow inbound for a local user

. It might be an easy fix, but I just thought of it now. Hope someone finds this useful. Razvan Constantin -Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Inteq Solution - Dep. Tehnic Sent: Friday, February 06, 2015 12:51 AM

RE: Reject domain but allow inbound for a local user

Small error: score USER_IN_WHITELIST 200 should have a negative score so make it score USER_IN_WHITELIST -200 Razvan Constantin +40.755.096.096 t...@inteq.ro -Original Message- From: Inteq Solution - Dep. Tehnic [mailto:t...@inteq.ro] Sent: Thursday, March 19, 2015 6:42 AM

This user doesn't have a yahoo.com account

Hello, For some time now, on and off, I see this problem. Users sending or replying to yahoo.com users receive the error: This user doesn't have a yahoo.com account Of course, my first reaction was to blame the user not writing the email address correctly. But checking the logs I see, many

RE: Reject domain but allow inbound for a local user

domain but allow inbound for a local user Inteq Solution - Dep. Tehnic: somedomain.com REJECT Is there any way to REJECT a domain but allow inbound messages to a specific local user from the rejected domain? u...@example.comDUNNO example.com REJECT If in doubt

Reject domain but allow inbound for a local user

Hello, Using check_sender_access to REJECT a list of domains Using the format: somedomain.com REJECT My searching skills seem to be subpar today, so I request your help. Is there any way to REJECT a domain but allow inbound messages to a specific local user from the

RE: Reject domain but allow inbound for a local user

: Reject domain but allow inbound for a local user On 2/5/2015 8:00 AM, li...@rhsoft.net wrote: Am 05.02.2015 um 14:54 schrieb Inteq Solution - Dep. Tehnic: Thank you for taking your time to reply Wietse, I might have been a bit ambiguous about my problem. I know how to whitelist inbound u

opendkim and opendmarc failure for yahoo.com

Hello, Having some issues with messages from yahoo.com They seem to fail dkim and dmarc verification. Dmarc from gmail.com (for example) works just fine. Any clue if Yahoo is having some problems? Can't seem to find any on my side. Oct 5 17:55:35 ns4 postfix/smtpd[5789]: connect from

RE: opendkim and opendmarc failure for yahoo.com

this problem. -Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Sunday, October 05, 2014 6:53 PM To: Postfix users Subject: Re: opendkim and opendmarc failure for yahoo.com Inteq Solution - Dep. tehnic: Oct 5 17:55:44

RE: opendkim and opendmarc failure for yahoo.com

...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Sunday, October 05, 2014 7:48 PM To: Postfix users Subject: Re: opendkim and opendmarc failure for yahoo.com Inteq Solution - Dep. tehnic: No security appliance in front of Postifix. I use SpamAssassin

RE: Error I'm not familiar with

Your domain seems to be on URIBL blacklist (black) Contains an URL listed in the URIBL blacklist [URIs: d u s t y p e x.com] jfyi Razvan -Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Tuesday, June

RE: Blocking executables. What did I miss?

Thank you Wietse, Viktor, Learned something new today. Even though I read the documentation regarding content filtering, it seems I missed that part. Will look for a complementary solution. All the best Razvan -Original Message- From: owner-postfix-us...@postfix.org

RE: Blocking executables. What did I miss?

Hello Viktor, I admit, I am not a guru in Postfix but I am trying. I do not understand where the confusion is? Using both my examples (mime_header_checks and header_checks), my executable (.bat) is blocked when I send a test email from Outlook with the correct REJECT text. But, when testing from

Blocking executables. What did I miss?

Hello Tonight, while checking Postfix config, I have stumbled upon something weird. I am blocking executables and potentially dangerous extensions with header_checks = pcre:/etc/postfix/header_checks.pcre Inside header_checks.pcre I have: