CentOS - Jul 2010 - [CORRECTED] Postfix SMTP authentication on remote relay serve

Sorry about the previous post, I see the subject had a typo. So here's
the correct one :)



Does anyone know how to configure Postfix to use SMTP authentication
on a relay host?

i.e. I have a Linux server, running PostFix on an ADSL line with a
dynamic IP. Thus I can't just send out emails from this server but
need to relay it via our ISP's SMTP server, which is very unreliable.
Now I want to relay the email via another SMTP, running cPanel server
where a user account with the same domain has already been setup, but
I got no idea how to get it to work on SMTP authenticiaion.

Any suggestions?

-- 
Kind Regards
Rudi Ahlers
SoftDux

Website: http://www.SoftDux.com
Technical Blog: http://Blog.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532

Hi,


If you want to send mail via another server, Pls edit
/etc/postfix/main.cfin following way.


relayhost = an.ip.add.ress of isp mail server


then , restart postfix as follows

service postfix restart




On Fri, Jul 30, 2010 at 5:52 PM, Rudi Ahlers <Rudi at softdux.com> wrote:
> Sorry about the previous post, I see the subject had a typo. So here's
> the correct one :)
>
>
>
> Does anyone know how to configure Postfix to use SMTP authentication
> on a relay host?
>
> i.e. I have a Linux server, running PostFix on an ADSL line with a
> dynamic IP. Thus I can't just send out emails from this server but
> need to relay it via our ISP's SMTP server, which is very unreliable.
> Now I want to relay the email via another SMTP, running cPanel server
> where a user account with the same domain has already been setup, but
> I got no idea how to get it to work on SMTP authenticiaion.
>
> Any suggestions?
>
> --
> Kind Regards
> Rudi Ahlers
> SoftDux
>
> Website: http://www.SoftDux.com
> Technical Blog: http://Blog.SoftDux.com
> Office: 087 805 9573
> Cell: 082 554 7532
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>


-- 
Thank you
Indunil Jayasooriya
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On 30/07/10 13:22, Rudi Ahlers wrote:
> Sorry about the previous post, I see the subject had a typo. So here's
> the correct one :)
>
>
>
> Does anyone know how to configure Postfix to use SMTP authentication
> on a relay host?
>
> i.e. I have a Linux server, running PostFix on an ADSL line with a
> dynamic IP. Thus I can't just send out emails from this server but
> need to relay it via our ISP's SMTP server, which is very unreliable.
> Now I want to relay the email via another SMTP, running cPanel server
> where a user account with the same domain has already been setup, but
> I got no idea how to get it to work on SMTP authenticiaion.
>
> Any suggestions?
>
Try reading:

http://wiki.centos.org/HowTos/postfix_sasl
http://www.postfix.org/SASL_README.html
http://postfix.state-of-mind.de/patrick.koetter/smtpauth/

and references therein.

Hope that helps.