[imp] Horde (IMP) email problems

[Louis-Philippe Allard]

On Thu, May 8, 2014 at 2:46 PM, Michael M Slusarz <slusarz at horde.org> wrote:

> Quoting Louis-Philippe Allard <lp.allard.1 at gmail.com>:
>
>  So far I have tried sending emails to two different adresses, one on
>> Gmail,
>> and the other on hotmail.  None have made it through.  Sending an email
>> from my horde to a hotmail address, I get a mail from "Delivery subsystem"
>> with more or less this content:
>>
>> ***********************************
>>
>> "The original message was received at Thu, 8 May 2014 08:14:25 -0400
>> from localhost [127.0.0.1]
>>
>>    ----- The following addresses had permanent fatal errors -----
>> xxxxxxxxxxxxxx at hotmail.com
>>     (reason: 550 OU-002 (COL0-MC6-F27) Unfortunately, messages from
>> XX.XX.XX.XX weren't sent. Please contact y...ock list. You can also refer
>> your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.)
>>
>>    ----- Transcript of session follows -----
>> ... while talking to mx4.hotmail.com.:
>>
>>> MAIL From:<lp.allard.1 at gmail.com> SIZE=1839
>>>>>
>>>> <<< 550 OU-002 (COL0-MC6-F27) Unfortunately, messages from XX.XX.XX.XX
>> weren't sent. Please contact your Internet service provider since part of
>> their network is on our block list. You can also refer your provider to
>> http://mail.live.com/mail/troubleshooting.aspx#errors.
>> 554 5.0.0 Service unavailable
>>
>
> Your local server is on a network range that is being blocked from
> relaying messages to hotmail.com.  This has nothing to do with Horde/IMP
> (or any other local MUA you are using) - this is a mail transfer issue
> (i.e. at the SMTP level).
>
> michael
>
> ___________________________________
> Michael Slusarz [slusarz at horde.org]
>
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Sorry for asking such stupid things but by network range, what do you
mean?  This is a home server having a local IP (delivered by my local
router).  This used to work perfectly.  All I changed is the server OS
which is now CentOS 6.5.

My router gets an IP from my ISP.  Simple's that!

I'd like if you can expand your explanation just a bit more so I can get a
clear picture!

Thanks again!