Mailing List Message #106235
From: Gib Henry <>
Subject: Re: Temporarily blocked...not
Date: Thu, 27 Oct 2016 14:58:56 +0200
To: CommuniGate Pro Discussions <>

I didn’t say it should.  However, any SMTP server which checks your DMARC record may reject anything you post via a list like CommuniGate Pro, so you’re not getting to everyone on the list.  One option is to add the list server as an authorized sender for your domain.

On 10/27/16 2:27 PM, Palvelin Postmaster wrote:
Yes, I use DMARC. Why should * be an authorized sender for my domain?

On 27 Oct 2016, at 15:11, Gib Henry <> wrote:

And by the way, I’m guessing you use DMARC.  Your email was tagged “reject” because * is not an authorized sender for

DMARC: reject

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Date: Thu, 27 Oct 2016 09:37:36 +0300
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Subject: Temporarily blocked...not

On 10/27/16 8:37 AM, Palvelin Postmaster wrote:

we get occasional brute force login atttempts. The following log clip shows a couple. The second login attempt would suggest the previous attempt doesn't actually block the host from retrying even though the log entry suggests so. Do I misunderstand something?

20:43:21.328 1 POP-006892([]:4079) failed to open ACCOUNT(cs) for []:4079->[]:110. Error Code=unknown user account
20:43:21.329 1 POP-006892([]:4079) [] temporarily blocked on login failure
20:43:21.343 1 ROUTER SYSTEM: 'angela' rejected. Error Code=unknown user account
20:43:21.343 1 POP-006893([]:3535) failed to open ACCOUNT(angela) for []:3535->[]:110. Error Code=unknown user account
20:43:21.344 1 POP-006893([]:3535) [] temporarily blocked on login failure
20:43:21.596 1 ROUTER SYSTEM: 'company' rejected. Error Code=unknown user account

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